Respuesta :

Answer:

X=5

Step-by-step explanation:

3x+4=5x-6

3x+10=5x

10=2x

5=x

5 is the correct answer

since SALE is a parallelogram, opposite sides are congruent.

solve for x

3x+4=5x-6
-2x+4=-6
-2x=-10
x=5