x+12+x+-10=90

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Solution for x+12+x+-10=90 equation:


Simplifying
x + 12 + x + -10 = 90

Reorder the terms:
12 + -10 + x + x = 90

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

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

Solving
2 + 2x = 90

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 2x = 90 + -2

Combine like terms: 2 + -2 = 0
0 + 2x = 90 + -2
2x = 90 + -2

Combine like terms: 90 + -2 = 88
2x = 88

Divide each side by '2'.
x = 44

Simplifying
x = 44

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