-x-40=-4x+20

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Solution for -x-40=-4x+20 equation:


Simplifying
-1x + -40 = -4x + 20

Reorder the terms:
-40 + -1x = -4x + 20

Reorder the terms:
-40 + -1x = 20 + -4x

Solving
-40 + -1x = 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.
-40 + -1x + 4x = 20 + -4x + 4x

Combine like terms: -1x + 4x = 3x
-40 + 3x = 20 + -4x + 4x

Combine like terms: -4x + 4x = 0
-40 + 3x = 20 + 0
-40 + 3x = 20

Add '40' to each side of the equation.
-40 + 40 + 3x = 20 + 40

Combine like terms: -40 + 40 = 0
0 + 3x = 20 + 40
3x = 20 + 40

Combine like terms: 20 + 40 = 60
3x = 60

Divide each side by '3'.
x = 20

Simplifying
x = 20

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