80+x-10=90

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Solution for 80+x-10=90 equation: 


Simplifying
80 + x + -10 = 90

Reorder the terms:
80 + -10 + x = 90

Combine like terms: 80 + -10 = 70
70 + x = 90

Solving
70 + x = 90

Solving for variable 'x'.

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

Add '-70' to each side of the equation.
70 + -70 + x = 90 + -70

Combine like terms: 70 + -70 = 0
0 + x = 90 + -70
x = 90 + -70

Combine like terms: 90 + -70 = 20
x = 20

Simplifying
x = 20

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