90=x+30+10

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Solution for 90=x+30+10 equation: 


Simplifying
90 = x + 30 + 10

Reorder the terms:
90 = 30 + 10 + x

Combine like terms: 30 + 10 = 40
90 = 40 + x

Solving
90 = 40 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
90 + -1x = 40 + x + -1x

Combine like terms: x + -1x = 0
90 + -1x = 40 + 0
90 + -1x = 40

Add '-90' to each side of the equation.
90 + -90 + -1x = 40 + -90

Combine like terms: 90 + -90 = 0
0 + -1x = 40 + -90
-1x = 40 + -90

Combine like terms: 40 + -90 = -50
-1x = -50

Divide each side by '-1'.
x = 50

Simplifying
x = 50

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