Question

What is the value of the expression
2(x + 4) - (y-8)
when x= 1 and y= 3?

Answer 1

11

Explanation:

First, you simplify the equation. 2x+4-y+8=2x+12-y. Then, you apply x=1 and y=3. 2+12-3=14-3=11

Answer 2

15

Explanation:

plug in what we know

2(1+4)-(3-8)

PEMDAS says parenthesis first

2(5)-(-5)

Then multiplication since there are no exponenents

10-(-5)

two negatives makes a posititve

10+5

add

15