-21+2x=-3x+9

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Solution for -21+2x=-3x+9 equation:


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

Reorder the terms:
-21 + 2x = 9 + -3x

Solving
-21 + 2x = 9 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-21 + 2x + 3x = 9 + -3x + 3x

Combine like terms: 2x + 3x = 5x
-21 + 5x = 9 + -3x + 3x

Combine like terms: -3x + 3x = 0
-21 + 5x = 9 + 0
-21 + 5x = 9

Add '21' to each side of the equation.
-21 + 21 + 5x = 9 + 21

Combine like terms: -21 + 21 = 0
0 + 5x = 9 + 21
5x = 9 + 21

Combine like terms: 9 + 21 = 30
5x = 30

Divide each side by '5'.
x = 6

Simplifying
x = 6

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