-1(x-4)=20

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Solution for -1(x-4)=20 equation: 


Simplifying
-1(x + -4) = 20

Reorder the terms:
-1(-4 + x) = 20
(-4 * -1 + x * -1) = 20
(4 + -1x) = 20

Solving
4 + -1x = 20

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + -1x = 20 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 20 + -4
-1x = 20 + -4

Combine like terms: 20 + -4 = 16
-1x = 16

Divide each side by '-1'.
x = -16

Simplifying
x = -16

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