8x+13x=9+12x

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Solution for 8x+13x=9+12x equation:


Simplifying
8x + 13x = 9 + 12x

Combine like terms: 8x + 13x = 21x
21x = 9 + 12x

Solving
21x = 9 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
21x + -12x = 9 + 12x + -12x

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

Combine like terms: 12x + -12x = 0
9x = 9 + 0
9x = 9

Divide each side by '9'.
x = 1

Simplifying
x = 1

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