7x-2x-3=9x+12

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Solution for 7x-2x-3=9x+12 equation:


Simplifying
7x + -2x + -3 = 9x + 12

Reorder the terms:
-3 + 7x + -2x = 9x + 12

Combine like terms: 7x + -2x = 5x
-3 + 5x = 9x + 12

Reorder the terms:
-3 + 5x = 12 + 9x

Solving
-3 + 5x = 12 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-3 + 5x + -9x = 12 + 9x + -9x

Combine like terms: 5x + -9x = -4x
-3 + -4x = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
-3 + -4x = 12 + 0
-3 + -4x = 12

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

Combine like terms: -3 + 3 = 0
0 + -4x = 12 + 3
-4x = 12 + 3

Combine like terms: 12 + 3 = 15
-4x = 15

Divide each side by '-4'.
x = -3.75

Simplifying
x = -3.75

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