75+x=90

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Solution for 75+x=90 equation: 


Simplifying
75 + x = 90

Solving
75 + x = 90

Solving for variable 'x'.

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

Add '-75' to each side of the equation.
75 + -75 + x = 90 + -75

Combine like terms: 75 + -75 = 0
0 + x = 90 + -75
x = 90 + -75

Combine like terms: 90 + -75 = 15
x = 15

Simplifying
x = 15

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