12x+9=9x+45

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Solution for 12x+9=9x+45 equation:


Simplifying
12x + 9 = 9x + 45

Reorder the terms:
9 + 12x = 9x + 45

Reorder the terms:
9 + 12x = 45 + 9x

Solving
9 + 12x = 45 + 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 = 45 + 9x + -9x

Combine like terms: 12x + -9x = 3x
9 + 3x = 45 + 9x + -9x

Combine like terms: 9x + -9x = 0
9 + 3x = 45 + 0
9 + 3x = 45

Add '-9' to each side of the equation.
9 + -9 + 3x = 45 + -9

Combine like terms: 9 + -9 = 0
0 + 3x = 45 + -9
3x = 45 + -9

Combine like terms: 45 + -9 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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