9-12x=(4-3x)-(9x+7)

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Solution for 9-12x=(4-3x)-(9x+7) equation:


Simplifying
9 + -12x = (4 + -3x) + -1(9x + 7)

Remove parenthesis around (4 + -3x)
9 + -12x = 4 + -3x + -1(9x + 7)

Reorder the terms:
9 + -12x = 4 + -3x + -1(7 + 9x)
9 + -12x = 4 + -3x + (7 * -1 + 9x * -1)
9 + -12x = 4 + -3x + (-7 + -9x)

Reorder the terms:
9 + -12x = 4 + -7 + -3x + -9x

Combine like terms: 4 + -7 = -3
9 + -12x = -3 + -3x + -9x

Combine like terms: -3x + -9x = -12x
9 + -12x = -3 + -12x

Add '12x' to each side of the equation.
9 + -12x + 12x = -3 + -12x + 12x

Combine like terms: -12x + 12x = 0
9 + 0 = -3 + -12x + 12x
9 = -3 + -12x + 12x

Combine like terms: -12x + 12x = 0
9 = -3 + 0
9 = -3

Solving
9 = -3

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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