159-(7x+12)=7(x+6)+x

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Solution for 159-(7x+12)=7(x+6)+x equation:


Simplifying
159 + -1(7x + 12) = 7(x + 6) + x

Reorder the terms:
159 + -1(12 + 7x) = 7(x + 6) + x
159 + (12 * -1 + 7x * -1) = 7(x + 6) + x
159 + (-12 + -7x) = 7(x + 6) + x

Combine like terms: 159 + -12 = 147
147 + -7x = 7(x + 6) + x

Reorder the terms:
147 + -7x = 7(6 + x) + x
147 + -7x = (6 * 7 + x * 7) + x
147 + -7x = (42 + 7x) + x

Combine like terms: 7x + x = 8x
147 + -7x = 42 + 8x

Solving
147 + -7x = 42 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
147 + -7x + -8x = 42 + 8x + -8x

Combine like terms: -7x + -8x = -15x
147 + -15x = 42 + 8x + -8x

Combine like terms: 8x + -8x = 0
147 + -15x = 42 + 0
147 + -15x = 42

Add '-147' to each side of the equation.
147 + -147 + -15x = 42 + -147

Combine like terms: 147 + -147 = 0
0 + -15x = 42 + -147
-15x = 42 + -147

Combine like terms: 42 + -147 = -105
-15x = -105

Divide each side by '-15'.
x = 7

Simplifying
x = 7

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