12x+9=-9x+15

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Solution for 12x+9=-9x+15 equation:


Simplifying
12x + 9 = -9x + 15

Reorder the terms:
9 + 12x = -9x + 15

Reorder the terms:
9 + 12x = 15 + -9x

Solving
9 + 12x = 15 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
9 + 12x + 9x = 15 + -9x + 9x

Combine like terms: 12x + 9x = 21x
9 + 21x = 15 + -9x + 9x

Combine like terms: -9x + 9x = 0
9 + 21x = 15 + 0
9 + 21x = 15

Add '-9' to each side of the equation.
9 + -9 + 21x = 15 + -9

Combine like terms: 9 + -9 = 0
0 + 21x = 15 + -9
21x = 15 + -9

Combine like terms: 15 + -9 = 6
21x = 6

Divide each side by '21'.
x = 0.2857142857

Simplifying
x = 0.2857142857

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