20=x-2(x+4)

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


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

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

Reorder the terms:
20 = -8 + x + -2x

Combine like terms: x + -2x = -1x
20 = -8 + -1x

Solving
20 = -8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
20 + x = -8 + -1x + x

Combine like terms: -1x + x = 0
20 + x = -8 + 0
20 + x = -8

Add '-20' to each side of the equation.
20 + -20 + x = -8 + -20

Combine like terms: 20 + -20 = 0
0 + x = -8 + -20
x = -8 + -20

Combine like terms: -8 + -20 = -28
x = -28

Simplifying
x = -28

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