X-10+2x-20=90

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Solution for X-10+2x-20=90 equation: 


Simplifying
X + -10 + 2x + -20 = 90

Reorder the terms:
-10 + -20 + X + 2x = 90

Combine like terms: -10 + -20 = -30
-30 + X + 2x = 90

Solving
-30 + X + 2x = 90

Solving for variable 'X'.

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

Add '30' to each side of the equation.
-30 + X + 30 + 2x = 90 + 30

Reorder the terms:
-30 + 30 + X + 2x = 90 + 30

Combine like terms: -30 + 30 = 0
0 + X + 2x = 90 + 30
X + 2x = 90 + 30

Combine like terms: 90 + 30 = 120
X + 2x = 120

Add '-2x' to each side of the equation.
X + 2x + -2x = 120 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 120 + -2x
X = 120 + -2x

Simplifying
X = 120 + -2x

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