x-40=90

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Solution for x-40=90 equation: 


Simplifying
x + -40 = 90

Reorder the terms:
-40 + x = 90

Solving
-40 + x = 90

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + x = 90 + 40

Combine like terms: -40 + 40 = 0
0 + x = 90 + 40
x = 90 + 40

Combine like terms: 90 + 40 = 130
x = 130

Simplifying
x = 130

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