3x-7+2x-12=90

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Solution for 3x-7+2x-12=90 equation:


Simplifying
3x + -7 + 2x + -12 = 90

Reorder the terms:
-7 + -12 + 3x + 2x = 90

Combine like terms: -7 + -12 = -19
-19 + 3x + 2x = 90

Combine like terms: 3x + 2x = 5x
-19 + 5x = 90

Solving
-19 + 5x = 90

Solving for variable 'x'.

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

Add '19' to each side of the equation.
-19 + 19 + 5x = 90 + 19

Combine like terms: -19 + 19 = 0
0 + 5x = 90 + 19
5x = 90 + 19

Combine like terms: 90 + 19 = 109
5x = 109

Divide each side by '5'.
x = 21.8

Simplifying
x = 21.8

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