8x-6+12x+45=90

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Solution for 8x-6+12x+45=90 equation:


Simplifying
8x + -6 + 12x + 45 = 90

Reorder the terms:
-6 + 45 + 8x + 12x = 90

Combine like terms: -6 + 45 = 39
39 + 8x + 12x = 90

Combine like terms: 8x + 12x = 20x
39 + 20x = 90

Solving
39 + 20x = 90

Solving for variable 'x'.

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

Add '-39' to each side of the equation.
39 + -39 + 20x = 90 + -39

Combine like terms: 39 + -39 = 0
0 + 20x = 90 + -39
20x = 90 + -39

Combine like terms: 90 + -39 = 51
20x = 51

Divide each side by '20'.
x = 2.55

Simplifying
x = 2.55

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