3x-9+5x=-12

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Solution for 3x-9+5x=-12 equation:


Simplifying
3x + -9 + 5x = -12

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

Combine like terms: 3x + 5x = 8x
-9 + 8x = -12

Solving
-9 + 8x = -12

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 8x = -12 + 9

Combine like terms: -9 + 9 = 0
0 + 8x = -12 + 9
8x = -12 + 9

Combine like terms: -12 + 9 = -3
8x = -3

Divide each side by '8'.
x = -0.375

Simplifying
x = -0.375

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