2x-2+72=90

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Solution for 2x-2+72=90 equation: 


Simplifying
2x + -2 + 72 = 90

Reorder the terms:
-2 + 72 + 2x = 90

Combine like terms: -2 + 72 = 70
70 + 2x = 90

Solving
70 + 2x = 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 + 2x = 90 + -70

Combine like terms: 70 + -70 = 0
0 + 2x = 90 + -70
2x = 90 + -70

Combine like terms: 90 + -70 = 20
2x = 20

Divide each side by '2'.
x = 10

Simplifying
x = 10

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