3(x+1)+9=4(x-3)-x

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Solution for 3(x+1)+9=4(x-3)-x equation: 


Simplifying
3(x + 1) + 9 = 4(x + -3) + -1x

Reorder the terms:
3(1 + x) + 9 = 4(x + -3) + -1x
(1 * 3 + x * 3) + 9 = 4(x + -3) + -1x
(3 + 3x) + 9 = 4(x + -3) + -1x

Reorder the terms:
3 + 9 + 3x = 4(x + -3) + -1x

Combine like terms: 3 + 9 = 12
12 + 3x = 4(x + -3) + -1x

Reorder the terms:
12 + 3x = 4(-3 + x) + -1x
12 + 3x = (-3 * 4 + x * 4) + -1x
12 + 3x = (-12 + 4x) + -1x

Combine like terms: 4x + -1x = 3x
12 + 3x = -12 + 3x

Add '-3x' to each side of the equation.
12 + 3x + -3x = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + 0 = -12 + 3x + -3x
12 = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 = -12 + 0
12 = -12

Solving
12 = -12

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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