21 because it is being multiplied
-3(2x-4)+8x-8
-6x+12+8x-8
2x+4
x=2
Cross multiplying we get
x^2 = 2*7x
x^2 = 14x
x^2 - 14x = 0 is the answer
Hi there!
I believe the answer would be A. Addition Property of Equality
Adding 0.36 to both sides of the equation and x being -5 means that the value is true, making it the A.
Hope this helps !