x+2(-x)=3x+20

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Solution for x+2(-x)=3x+20 equation:


Simplifying
x + 2(-1x) = 3x + 20

Remove parenthesis around (-1x)
x + 2 * -1x = 3x + 20

Multiply 2 * -1
x + -2x = 3x + 20

Combine like terms: x + -2x = -1x
-1x = 3x + 20

Reorder the terms:
-1x = 20 + 3x

Solving
-1x = 20 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-1x + -3x = 20 + 3x + -3x

Combine like terms: -1x + -3x = -4x
-4x = 20 + 3x + -3x

Combine like terms: 3x + -3x = 0
-4x = 20 + 0
-4x = 20

Divide each side by '-4'.
x = -5

Simplifying
x = -5

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