4x-12=3x-9

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Solution for 4x-12=3x-9 equation:


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

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

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

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

Solving for variable 'x'.

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

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

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

Combine like terms: 3x + -3x = 0
-12 + 1x = -9 + 0
-12 + 1x = -9

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

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

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

Divide each side by '1'.
x = 3

Simplifying
x = 3

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