3(x+1)-9x=12-(2x-7)

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Solution for 3(x+1)-9x=12-(2x-7) equation:


Simplifying
3(x + 1) + -9x = 12 + -1(2x + -7)

Reorder the terms:
3(1 + x) + -9x = 12 + -1(2x + -7)
(1 * 3 + x * 3) + -9x = 12 + -1(2x + -7)
(3 + 3x) + -9x = 12 + -1(2x + -7)

Combine like terms: 3x + -9x = -6x
3 + -6x = 12 + -1(2x + -7)

Reorder the terms:
3 + -6x = 12 + -1(-7 + 2x)
3 + -6x = 12 + (-7 * -1 + 2x * -1)
3 + -6x = 12 + (7 + -2x)

Combine like terms: 12 + 7 = 19
3 + -6x = 19 + -2x

Solving
3 + -6x = 19 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
3 + -6x + 2x = 19 + -2x + 2x

Combine like terms: -6x + 2x = -4x
3 + -4x = 19 + -2x + 2x

Combine like terms: -2x + 2x = 0
3 + -4x = 19 + 0
3 + -4x = 19

Add '-3' to each side of the equation.
3 + -3 + -4x = 19 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = 19 + -3
-4x = 19 + -3

Combine like terms: 19 + -3 = 16
-4x = 16

Divide each side by '-4'.
x = -4

Simplifying
x = -4

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