Question

Evaluate the diagram below.
Find the value of x and the measure of side EF.

Answer 1

x=5

EF = 22in.

Explanation:

We know EF and DE are equal, so we can solve for x.

5x-3=3x+7

5x-3x=7+3

2x=10

x=5

Now we plug that into EF.

EF = 3x+7 = 3(5)+7 = 15+7=22