8x-(-x-7)=6x+40

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Solution for 8x-(-x-7)=6x+40 equation:


Simplifying
8x + -1(-1x + -7) = 6x + 40

Reorder the terms:
8x + -1(-7 + -1x) = 6x + 40
8x + (-7 * -1 + -1x * -1) = 6x + 40
8x + (7 + 1x) = 6x + 40

Reorder the terms:
7 + 8x + 1x = 6x + 40

Combine like terms: 8x + 1x = 9x
7 + 9x = 6x + 40

Reorder the terms:
7 + 9x = 40 + 6x

Solving
7 + 9x = 40 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
7 + 9x + -6x = 40 + 6x + -6x

Combine like terms: 9x + -6x = 3x
7 + 3x = 40 + 6x + -6x

Combine like terms: 6x + -6x = 0
7 + 3x = 40 + 0
7 + 3x = 40

Add '-7' to each side of the equation.
7 + -7 + 3x = 40 + -7

Combine like terms: 7 + -7 = 0
0 + 3x = 40 + -7
3x = 40 + -7

Combine like terms: 40 + -7 = 33
3x = 33

Divide each side by '3'.
x = 11

Simplifying
x = 11

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