3x-15+9x+28=

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Solution for 3x-15+9x+28= equation:


Simplifying
3x + -15 + 9x + 28 = 0

Reorder the terms:
-15 + 28 + 3x + 9x = 0

Combine like terms: -15 + 28 = 13
13 + 3x + 9x = 0

Combine like terms: 3x + 9x = 12x
13 + 12x = 0

Solving
13 + 12x = 0

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 12x = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 12x = 0 + -13
12x = 0 + -13

Combine like terms: 0 + -13 = -13
12x = -13

Divide each side by '12'.
x = -1.083333333

Simplifying
x = -1.083333333

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