3x+45=x+9

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Solution for 3x+45=x+9 equation:


Simplifying
3x + 45 = x + 9

Reorder the terms:
45 + 3x = x + 9

Reorder the terms:
45 + 3x = 9 + x

Solving
45 + 3x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
45 + 3x + -1x = 9 + x + -1x

Combine like terms: 3x + -1x = 2x
45 + 2x = 9 + x + -1x

Combine like terms: x + -1x = 0
45 + 2x = 9 + 0
45 + 2x = 9

Add '-45' to each side of the equation.
45 + -45 + 2x = 9 + -45

Combine like terms: 45 + -45 = 0
0 + 2x = 9 + -45
2x = 9 + -45

Combine like terms: 9 + -45 = -36
2x = -36

Divide each side by '2'.
x = -18

Simplifying
x = -18

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