4x-2(-2x-20)=-40

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Solution for 4x-2(-2x-20)=-40 equation: 


Simplifying
4x + -2(-2x + -20) = -40

Reorder the terms:
4x + -2(-20 + -2x) = -40
4x + (-20 * -2 + -2x * -2) = -40
4x + (40 + 4x) = -40

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

Combine like terms: 4x + 4x = 8x
40 + 8x = -40

Solving
40 + 8x = -40

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + 8x = -40 + -40

Combine like terms: 40 + -40 = 0
0 + 8x = -40 + -40
8x = -40 + -40

Combine like terms: -40 + -40 = -80
8x = -80

Divide each side by '8'.
x = -10

Simplifying
x = -10

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