Q38. - Algebra 2

Question

Evaluate each expression if $w=6, x=0.4, y=\frac{1}{2},$ and $z=-3$ 

$w+x+z$

Step-by-Step Solution

Answer

Expression $w+x+z$ results into $3.4$

Step 1 - Order for simplification

To evaluate any expression involving more than one operation, follow the below order of operations:

• First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
• Evaluate the exponents.
• Perform Multiplication and division from left to right.

Perform addition and subtraction from left to right.

Step 2 - Substitute given values

Substitute $0.4$ for $x$, 6 for $w$ and -3 for $z$ into given expression

 $w+x+z=6+0.4+\left(-3\right)$

Step 3 - Simplify 6 + 0 . 4 + - 3

Now, to simplify add the numbers to get

$\begin{array}{c}6+0.4+\left(-3\right)=6.4+\left(-3\right)\\ =3.4\end{array}$

Thus,  $w+x+z=3.4$