2x-3=-21-x

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Solution for 2x-3=-21-x equation:


Simplifying
2x + -3 = -21 + -1x

Reorder the terms:
-3 + 2x = -21 + -1x

Solving
-3 + 2x = -21 + -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.
-3 + 2x + x = -21 + -1x + x

Combine like terms: 2x + x = 3x
-3 + 3x = -21 + -1x + x

Combine like terms: -1x + x = 0
-3 + 3x = -21 + 0
-3 + 3x = -21

Add '3' to each side of the equation.
-3 + 3 + 3x = -21 + 3

Combine like terms: -3 + 3 = 0
0 + 3x = -21 + 3
3x = -21 + 3

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

Divide each side by '3'.
x = -6

Simplifying
x = -6

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