9x-(6x+9)=4x-12

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Solution for 9x-(6x+9)=4x-12 equation:


Simplifying
9x + -1(6x + 9) = 4x + -12

Reorder the terms:
9x + -1(9 + 6x) = 4x + -12
9x + (9 * -1 + 6x * -1) = 4x + -12
9x + (-9 + -6x) = 4x + -12

Reorder the terms:
-9 + 9x + -6x = 4x + -12

Combine like terms: 9x + -6x = 3x
-9 + 3x = 4x + -12

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

Solving
-9 + 3x = -12 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-9 + 3x + -4x = -12 + 4x + -4x

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

Combine like terms: 4x + -4x = 0
-9 + -1x = -12 + 0
-9 + -1x = -12

Add '9' to each side of the equation.
-9 + 9 + -1x = -12 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = -12 + 9
-1x = -12 + 9

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

Divide each side by '-1'.
x = 3

Simplifying
x = 3

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