100-2x=90

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Solution for 100-2x=90 equation: 


Simplifying
100 + -2x = 90

Solving
100 + -2x = 90

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -2x = 90 + -100

Combine like terms: 100 + -100 = 0
0 + -2x = 90 + -100
-2x = 90 + -100

Combine like terms: 90 + -100 = -10
-2x = -10

Divide each side by '-2'.
x = 5

Simplifying
x = 5

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