In this question, you're solving for x.
Solve for x:
4(2x + 7) = 12 - 2(10 - 2x)
Use the distributive property to distribute the 4 to the variables inside the parenthesis:
8x + 28 = 12 - 2 (10 - 2x)
You would also use the distributive property to distribute the -2 to the variables inside the parenthesis:
8x + 28 = 12 - 20 + 4x
Subtract 4x from both sides
4x + 28 = 12 - 20
4x + 28 = -8
Subtract 28 from both sides
4x = -36
Divide both sides by 4
x = -9
Answer:
x = -9