2x+12+8x-2=90

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Solution for 2x+12+8x-2=90 equation:


Simplifying
2x + 12 + 8x + -2 = 90

Reorder the terms:
12 + -2 + 2x + 8x = 90

Combine like terms: 12 + -2 = 10
10 + 2x + 8x = 90

Combine like terms: 2x + 8x = 10x
10 + 10x = 90

Solving
10 + 10x = 90

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 10x = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 10x = 90 + -10
10x = 90 + -10

Combine like terms: 90 + -10 = 80
10x = 80

Divide each side by '10'.
x = 8

Simplifying
x = 8

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