Question

What is the value of y?

Answer 1

y=3

Explanation:

The opposite sides of a rectangle are equal, so you can set up two equations:

18=10+2x

AND

10=2y+4

We are looking for y, so we can throw out the equation that involves the variable x.

10=2y+4

1) Subtract a 4 from both sides:

2y=6

2) Divide both sides by 2:

y=3

Answer 2

3 becasue 3x2+4 is 10