7x+9-4x=11-12x-13

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Solution for 7x+9-4x=11-12x-13 equation:


Simplifying
7x + 9 + -4x = 11 + -12x + -13

Reorder the terms:
9 + 7x + -4x = 11 + -12x + -13

Combine like terms: 7x + -4x = 3x
9 + 3x = 11 + -12x + -13

Reorder the terms:
9 + 3x = 11 + -13 + -12x

Combine like terms: 11 + -13 = -2
9 + 3x = -2 + -12x

Solving
9 + 3x = -2 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
9 + 3x + 12x = -2 + -12x + 12x

Combine like terms: 3x + 12x = 15x
9 + 15x = -2 + -12x + 12x

Combine like terms: -12x + 12x = 0
9 + 15x = -2 + 0
9 + 15x = -2

Add '-9' to each side of the equation.
9 + -9 + 15x = -2 + -9

Combine like terms: 9 + -9 = 0
0 + 15x = -2 + -9
15x = -2 + -9

Combine like terms: -2 + -9 = -11
15x = -11

Divide each side by '15'.
x = -0.7333333333

Simplifying
x = -0.7333333333

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