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

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


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

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

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

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

Combine like terms: -7 + -12 = -19
-12 + 9x = -19 + 9 + 4x + -4x

Combine like terms: -19 + 9 = -10
-12 + 9x = -10 + 4x + -4x

Combine like terms: 4x + -4x = 0
-12 + 9x = -10 + 0
-12 + 9x = -10

Solving
-12 + 9x = -10

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 9x = -10 + 12

Combine like terms: -12 + 12 = 0
0 + 9x = -10 + 12
9x = -10 + 12

Combine like terms: -10 + 12 = 2
9x = 2

Divide each side by '9'.
x = 0.2222222222

Simplifying
x = 0.2222222222

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