4x-12=7x-99

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Solution for 4x-12=7x-99 equation:


Simplifying
4x + -12 = 7x + -99

Reorder the terms:
-12 + 4x = 7x + -99

Reorder the terms:
-12 + 4x = -99 + 7x

Solving
-12 + 4x = -99 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-12 + 4x + -7x = -99 + 7x + -7x

Combine like terms: 4x + -7x = -3x
-12 + -3x = -99 + 7x + -7x

Combine like terms: 7x + -7x = 0
-12 + -3x = -99 + 0
-12 + -3x = -99

Add '12' to each side of the equation.
-12 + 12 + -3x = -99 + 12

Combine like terms: -12 + 12 = 0
0 + -3x = -99 + 12
-3x = -99 + 12

Combine like terms: -99 + 12 = -87
-3x = -87

Divide each side by '-3'.
x = 29

Simplifying
x = 29

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