5x-3+1x+12+9x-12=90

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Solution for 5x-3+1x+12+9x-12=90 equation:


Simplifying
5x + -3 + 1x + 12 + 9x + -12 = 90

Reorder the terms:
-3 + 12 + -12 + 5x + 1x + 9x = 90

Combine like terms: -3 + 12 = 9
9 + -12 + 5x + 1x + 9x = 90

Combine like terms: 9 + -12 = -3
-3 + 5x + 1x + 9x = 90

Combine like terms: 5x + 1x = 6x
-3 + 6x + 9x = 90

Combine like terms: 6x + 9x = 15x
-3 + 15x = 90

Solving
-3 + 15x = 90

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 + 15x = 90 + 3

Combine like terms: -3 + 3 = 0
0 + 15x = 90 + 3
15x = 90 + 3

Combine like terms: 90 + 3 = 93
15x = 93

Divide each side by '15'.
x = 6.2

Simplifying
x = 6.2

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