12(x+1)-4(x+1)=40

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Solution for 12(x+1)-4(x+1)=40 equation: 


Simplifying
12(x + 1) + -4(x + 1) = 40

Reorder the terms:
12(1 + x) + -4(x + 1) = 40
(1 * 12 + x * 12) + -4(x + 1) = 40
(12 + 12x) + -4(x + 1) = 40

Reorder the terms:
12 + 12x + -4(1 + x) = 40
12 + 12x + (1 * -4 + x * -4) = 40
12 + 12x + (-4 + -4x) = 40

Reorder the terms:
12 + -4 + 12x + -4x = 40

Combine like terms: 12 + -4 = 8
8 + 12x + -4x = 40

Combine like terms: 12x + -4x = 8x
8 + 8x = 40

Solving
8 + 8x = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + 8x = 40 + -8

Combine like terms: 8 + -8 = 0
0 + 8x = 40 + -8
8x = 40 + -8

Combine like terms: 40 + -8 = 32
8x = 32

Divide each side by '8'.
x = 4

Simplifying
x = 4

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