7x-12-4x=7x-9

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Solution for 7x-12-4x=7x-9 equation:


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

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

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

Reorder the terms:
-12 + 3x = -9 + 7x

Solving
-12 + 3x = -9 + 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 + 3x + -7x = -9 + 7x + -7x

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

Combine like terms: 7x + -7x = 0
-12 + -4x = -9 + 0
-12 + -4x = -9

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

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

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

Divide each side by '-4'.
x = -0.75

Simplifying
x = -0.75

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