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

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


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

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

Reorder the terms:
42 + 7x + 6(6 + x) = 7x + -7
42 + 7x + (6 * 6 + x * 6) = 7x + -7
42 + 7x + (36 + 6x) = 7x + -7

Reorder the terms:
42 + 36 + 7x + 6x = 7x + -7

Combine like terms: 42 + 36 = 78
78 + 7x + 6x = 7x + -7

Combine like terms: 7x + 6x = 13x
78 + 13x = 7x + -7

Reorder the terms:
78 + 13x = -7 + 7x

Solving
78 + 13x = -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.
78 + 13x + -7x = -7 + 7x + -7x

Combine like terms: 13x + -7x = 6x
78 + 6x = -7 + 7x + -7x

Combine like terms: 7x + -7x = 0
78 + 6x = -7 + 0
78 + 6x = -7

Add '-78' to each side of the equation.
78 + -78 + 6x = -7 + -78

Combine like terms: 78 + -78 = 0
0 + 6x = -7 + -78
6x = -7 + -78

Combine like terms: -7 + -78 = -85
6x = -85

Divide each side by '6'.
x = -14.16666667

Simplifying
x = -14.16666667

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