900=x+2x-40+x+60

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Solution for 900=x+2x-40+x+60 equation: 


Simplifying
900 = x + 2x + -40 + x + 60

Reorder the terms:
900 = -40 + 60 + x + 2x + x

Combine like terms: -40 + 60 = 20
900 = 20 + x + 2x + x

Combine like terms: x + 2x = 3x
900 = 20 + 3x + x

Combine like terms: 3x + x = 4x
900 = 20 + 4x

Solving
900 = 20 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
900 + -4x = 20 + 4x + -4x

Combine like terms: 4x + -4x = 0
900 + -4x = 20 + 0
900 + -4x = 20

Add '-900' to each side of the equation.
900 + -900 + -4x = 20 + -900

Combine like terms: 900 + -900 = 0
0 + -4x = 20 + -900
-4x = 20 + -900

Combine like terms: 20 + -900 = -880
-4x = -880

Divide each side by '-4'.
x = 220

Simplifying
x = 220

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