45-90+x=90

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Solution for 45-90+x=90 equation: 


Simplifying
45 + -90 + x = 90

Combine like terms: 45 + -90 = -45
-45 + x = 90

Solving
-45 + x = 90

Solving for variable 'x'.

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

Add '45' to each side of the equation.
-45 + 45 + x = 90 + 45

Combine like terms: -45 + 45 = 0
0 + x = 90 + 45
x = 90 + 45

Combine like terms: 90 + 45 = 135
x = 135

Simplifying
x = 135

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