Question

Find the value of X, then find AB and DC.

(opposite sides are congruent)
AB= 3x+8
DC= x+12

Answer 1

Both AB and DC are equal to 14.

Explanation:

Answer 2

X=2, AB=14, DC=14

Explanation:

3x+8=x+12

Subtract x from both sides

2x+8=12

Subtract 8 from both sides

2x=4

Divide by 2 on the sides

Answer: x=2

Then replace the x's with (2) and multiply

3(2)+8 and (2)+12