-2(x-9)-21=-3

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Solution for -2(x-9)-21=-3 equation:


Simplifying
-2(x + -9) + -21 = -3

Reorder the terms:
-2(-9 + x) + -21 = -3
(-9 * -2 + x * -2) + -21 = -3
(18 + -2x) + -21 = -3

Reorder the terms:
18 + -21 + -2x = -3

Combine like terms: 18 + -21 = -3
-3 + -2x = -3

Add '3' to each side of the equation.
-3 + 3 + -2x = -3 + 3

Combine like terms: -3 + 3 = 0
0 + -2x = -3 + 3
-2x = -3 + 3

Combine like terms: -3 + 3 = 0
-2x = 0

Solving
-2x = 0

Solving for variable 'x'.

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

Divide each side by '-2'.
x = 0

Simplifying
x = 0

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