Answer:
x=8
Step-by-step explanation:
In this parallelogram, the opposite sides are equal
PN = LM
5x+7 = 9x-25
Subtract 5x from each side
5x-5x+7 = 9x-5x -25
7 = 4x-25
Add 25 to each side
7+25 = 4x-25+25
32 = 4x
Divide each side by 4
32/4 = 4x/4
8 =x
9x-25=5x+7 (set the equations equal to each other)
-5x -5x (put variables on one side)
4x-25=7
+25 +25 (get variables alone)
4x=32
divide it all by 4x
4/4=x
32/4 =8
therefore x=8
