3x+2+12x-17=90

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Solution for 3x+2+12x-17=90 equation:


Simplifying
3x + 2 + 12x + -17 = 90

Reorder the terms:
2 + -17 + 3x + 12x = 90

Combine like terms: 2 + -17 = -15
-15 + 3x + 12x = 90

Combine like terms: 3x + 12x = 15x
-15 + 15x = 90

Solving
-15 + 15x = 90

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 15x = 90 + 15

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

Combine like terms: 90 + 15 = 105
15x = 105

Divide each side by '15'.
x = 7

Simplifying
x = 7

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