Answer:
x = -8
Step-by-step explanation:
5x - 4 + 7x = 5(2x - 4)
12x - 4 = 10x - 20
+20 +20
12x + 16 = 10x
-12x -12x
16 = -2x
divide by -2
x = -8
Answer:
x = -8
Step-by-step explanation:
5x - 4 + 7x = 5(2x - 4)
12x - 4 = 10x - 20
+20 +20
12x + 16 = 10x
-12x -12x
16 = -2x
divide by -2
x = -8
