-1(x-6)=21

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Solution for -1(x-6)=21 equation: 


Simplifying
-1(x + -6) = 21

Reorder the terms:
-1(-6 + x) = 21
(-6 * -1 + x * -1) = 21
(6 + -1x) = 21

Solving
6 + -1x = 21

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + -1x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + -1x = 21 + -6
-1x = 21 + -6

Combine like terms: 21 + -6 = 15
-1x = 15

Divide each side by '-1'.
x = -15

Simplifying
x = -15

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