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