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

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


Simplifying
40 = 2x + -2(-1x + -4)

Reorder the terms:
40 = 2x + -2(-4 + -1x)
40 = 2x + (-4 * -2 + -1x * -2)
40 = 2x + (8 + 2x)

Reorder the terms:
40 = 8 + 2x + 2x

Combine like terms: 2x + 2x = 4x
40 = 8 + 4x

Solving
40 = 8 + 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 + -4x = 8 + 4x + -4x

Combine like terms: 4x + -4x = 0
40 + -4x = 8 + 0
40 + -4x = 8

Add '-40' to each side of the equation.
40 + -40 + -4x = 8 + -40

Combine like terms: 40 + -40 = 0
0 + -4x = 8 + -40
-4x = 8 + -40

Combine like terms: 8 + -40 = -32
-4x = -32

Divide each side by '-4'.
x = 8

Simplifying
x = 8

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