15x+13-3x=40+9x

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Solution for 15x+13-3x=40+9x equation:


Simplifying
15x + 13 + -3x = 40 + 9x

Reorder the terms:
13 + 15x + -3x = 40 + 9x

Combine like terms: 15x + -3x = 12x
13 + 12x = 40 + 9x

Solving
13 + 12x = 40 + 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.
13 + 12x + -9x = 40 + 9x + -9x

Combine like terms: 12x + -9x = 3x
13 + 3x = 40 + 9x + -9x

Combine like terms: 9x + -9x = 0
13 + 3x = 40 + 0
13 + 3x = 40

Add '-13' to each side of the equation.
13 + -13 + 3x = 40 + -13

Combine like terms: 13 + -13 = 0
0 + 3x = 40 + -13
3x = 40 + -13

Combine like terms: 40 + -13 = 27
3x = 27

Divide each side by '3'.
x = 9

Simplifying
x = 9

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