90-2x=40

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Solution for 90-2x=40 equation: 


Simplifying
90 + -2x = 40

Solving
90 + -2x = 40

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + -2x = 40 + -90

Combine like terms: 90 + -90 = 0
0 + -2x = 40 + -90
-2x = 40 + -90

Combine like terms: 40 + -90 = -50
-2x = -50

Divide each side by '-2'.
x = 25

Simplifying
x = 25

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