5x-12+7x+9=105

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Solution for 5x-12+7x+9=105 equation:


Simplifying
5x + -12 + 7x + 9 = 105

Reorder the terms:
-12 + 9 + 5x + 7x = 105

Combine like terms: -12 + 9 = -3
-3 + 5x + 7x = 105

Combine like terms: 5x + 7x = 12x
-3 + 12x = 105

Solving
-3 + 12x = 105

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 12x = 105 + 3

Combine like terms: -3 + 3 = 0
0 + 12x = 105 + 3
12x = 105 + 3

Combine like terms: 105 + 3 = 108
12x = 108

Divide each side by '12'.
x = 9

Simplifying
x = 9

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