9x-12=4x+7

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


Simplifying
9x + -12 = 4x + 7

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

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

Solving
-12 + 9x = 7 + 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.
-12 + 9x + -4x = 7 + 4x + -4x

Combine like terms: 9x + -4x = 5x
-12 + 5x = 7 + 4x + -4x

Combine like terms: 4x + -4x = 0
-12 + 5x = 7 + 0
-12 + 5x = 7

Add '12' to each side of the equation.
-12 + 12 + 5x = 7 + 12

Combine like terms: -12 + 12 = 0
0 + 5x = 7 + 12
5x = 7 + 12

Combine like terms: 7 + 12 = 19
5x = 19

Divide each side by '5'.
x = 3.8

Simplifying
x = 3.8

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