Chapter 3

Prealgebra and Introductory Algebra · 567 exercises

Problem 66

Simplify. $$-(-5)$$

2 step solution

Problem 66

Is 7 a solution of the equation \(-3 c=21 ?\)

3 step solution

Problem 66

Is \(-1.2\) a solution of the equation \(6.4=5.2+a ?\)

4 step solution

Problem 67

Use the given property of addition to complete the statement. The Addition Property of Zero $$-13+?=-13$$

3 step solution

Problem 67

Simplify. $$-(-7)$$

2 step solution

Problem 67

Is 9 a solution of the equation \(-27=-3 c ?\)

4 step solution

Problem 67

Is \(-2.8\) a solution of the equation \(0.8-p=3.6 ?\)

4 step solution

Problem 68

Simplify. $$-(29)$$

2 step solution

Problem 68

Will the product of three negative numbers be positive or negative?

3 step solution

Problem 68

State whether the given sum or difference will be positive or negative. A negative integer subtracted from a negative proper fraction

3 step solution

Problem 69

Use the given property of addition to complete the statement. The Inverse Property of Addition $$?+(-18)=0$$

3 step solution

Problem 69

Simplify. $$-(46)$$

2 step solution

Problem 69

Will the product of three positive numbers anc two negative numbers be positive or negative?

3 step solution

Problem 70

Is \(-3\) a solution of the equation \(x+4=1 ?\)

4 step solution

Problem 70

Simplify. $$-(-52)$$

3 step solution

Problem 70

Divide. $$12 \div(-6)$$

2 step solution

Problem 70

Perform the indicated operation. $$\frac{1}{2}\left(-\frac{3}{4}\right)$$

3 step solution

Problem 71

Is \(-8\) a solution of the equation \(6=-3+z ?\)

3 step solution

Problem 71

Simplify. $$-(-73)$$

2 step solution

Problem 71

Divide. $$18 \div(-3)$$

3 step solution

Problem 71

Perform the indicated operation. $$-\frac{2}{9}\left(-\frac{3}{14}\right)$$

3 step solution

Problem 72

Is \(-6\) a solution of the equation \(6=12+n ?\)

3 step solution

Problem 72

Simplify. $$-(-m)$$

2 step solution

Problem 72

Divide. $$(-72) \div(-9)$$

2 step solution

Problem 72

Perform the indicated operation. $$\left(-\frac{3}{8}\right)\left(-\frac{4}{15}\right)$$

3 step solution

Problem 73

Is \(-8\) a solution of the equation \(-7+m=-15 ?\)

3 step solution

Problem 73

Simplify. $$-(-z)$$

2 step solution

Problem 73

Divide. $$(-64) \div(-8)$$

3 step solution

Problem 73

Perform the indicated operation. $$\left(-\frac{3}{4}\right)\left(-\frac{8}{27}\right)$$

3 step solution

Problem 74

Is \(-2\) a solution of the equation \(3+y=y+3 ?\)

2 step solution

Problem 74

Simplify. $$-(b)$$

2 step solution

Problem 74

Divide. $$0 \div(-6)$$

2 step solution

Problem 74

Perform the indicated operation. $$-\frac{1}{2}\left(\frac{8}{9}\right)$$

5 step solution

Problem 75

Simplify. $$-(p)$$

2 step solution

Problem 75

Divide. $$-49 \div 1$$

3 step solution

Problem 75

Perform the indicated operation. $$\frac{5}{12}\left(-\frac{8}{15}\right)$$

3 step solution

Problem 76

Determine whether each statement is always true, sometimes true, or never true. Assume that \(a\) and \(b\) are integers. If \(a>0\) and \(b>0,\) then \(a+b>0\)

3 step solution

Problem 76

Write the statement "the opposite of negative \(a\) is \(b\) " in symbols. Does \(a\) equal \(b\), or are they opposites?

3 step solution

Problem 76

Divide. $$81 \div(-9)$$

3 step solution

Problem 76

Perform the indicated operation. $$\left(-\frac{5}{12}\right)\left(\frac{42}{65}\right)$$

4 step solution

Problem 77

Determine whether each statement is always true, sometimes true, or never true. Assume that \(a\) and \(b\) are integers. If \(a>0\) and \(b<0,\) then \(a+b>0\)

3 step solution

Problem 77

If \(a<0,\) is \(-(-a)\) positive or negative?

3 step solution

Problem 77

Divide. $$-40 \div(-5)$$

3 step solution

Problem 77

Perform the indicated operation. $$\left(\frac{3}{8}\right)\left(-\frac{15}{41}\right)$$

4 step solution

Problem 78

Find the absolute value of the number. $$4$$

2 step solution

Problem 78

Divide. $$\frac{72}{-3}$$

3 step solution

Problem 78

Perform the indicated operation. $$\left(-\frac{15}{8}\right)\left(-\frac{16}{3}\right)$$

4 step solution

Problem 79

Determine whether each statement is always true, sometimes true, or never true. Assume that \(a\) and \(b\) are integers. If \(a<0\) and \(b<0,\) then \(a+b<0\)

3 step solution

Problem 79

Find the absolute value of the number. $$-4$$

3 step solution

Problem 79

Divide. $$\frac{44}{-4}$$

3 step solution

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