5x+9-2x+12=

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Solution for 5x+9-2x+12= equation:


Simplifying
5x + 9 + -2x + 12 = 0

Reorder the terms:
9 + 12 + 5x + -2x = 0

Combine like terms: 9 + 12 = 21
21 + 5x + -2x = 0

Combine like terms: 5x + -2x = 3x
21 + 3x = 0

Solving
21 + 3x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 3x = 0 + -21

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

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

Divide each side by '3'.
x = -7

Simplifying
x = -7

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