3x-4+2x+12=90

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Solution for 3x-4+2x+12=90 equation:


Simplifying
3x + -4 + 2x + 12 = 90

Reorder the terms:
-4 + 12 + 3x + 2x = 90

Combine like terms: -4 + 12 = 8
8 + 3x + 2x = 90

Combine like terms: 3x + 2x = 5x
8 + 5x = 90

Solving
8 + 5x = 90

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 5x = 90 + -8

Combine like terms: 8 + -8 = 0
0 + 5x = 90 + -8
5x = 90 + -8

Combine like terms: 90 + -8 = 82
5x = 82

Divide each side by '5'.
x = 16.4

Simplifying
x = 16.4

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