7(x+6)+5(x+6)=7x-7

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Solution for 7(x+6)+5(x+6)=7x-7 equation:


Simplifying
7(x + 6) + 5(x + 6) = 7x + -7

Reorder the terms:
7(6 + x) + 5(x + 6) = 7x + -7
(6 * 7 + x * 7) + 5(x + 6) = 7x + -7
(42 + 7x) + 5(x + 6) = 7x + -7

Reorder the terms:
42 + 7x + 5(6 + x) = 7x + -7
42 + 7x + (6 * 5 + x * 5) = 7x + -7
42 + 7x + (30 + 5x) = 7x + -7

Reorder the terms:
42 + 30 + 7x + 5x = 7x + -7

Combine like terms: 42 + 30 = 72
72 + 7x + 5x = 7x + -7

Combine like terms: 7x + 5x = 12x
72 + 12x = 7x + -7

Reorder the terms:
72 + 12x = -7 + 7x

Solving
72 + 12x = -7 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
72 + 12x + -7x = -7 + 7x + -7x

Combine like terms: 12x + -7x = 5x
72 + 5x = -7 + 7x + -7x

Combine like terms: 7x + -7x = 0
72 + 5x = -7 + 0
72 + 5x = -7

Add '-72' to each side of the equation.
72 + -72 + 5x = -7 + -72

Combine like terms: 72 + -72 = 0
0 + 5x = -7 + -72
5x = -7 + -72

Combine like terms: -7 + -72 = -79
5x = -79

Divide each side by '5'.
x = -15.8

Simplifying
x = -15.8

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