3x+45=12x+165

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Solution for 3x+45=12x+165 equation:


Simplifying
3x + 45 = 12x + 165

Reorder the terms:
45 + 3x = 12x + 165

Reorder the terms:
45 + 3x = 165 + 12x

Solving
45 + 3x = 165 + 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.
45 + 3x + -12x = 165 + 12x + -12x

Combine like terms: 3x + -12x = -9x
45 + -9x = 165 + 12x + -12x

Combine like terms: 12x + -12x = 0
45 + -9x = 165 + 0
45 + -9x = 165

Add '-45' to each side of the equation.
45 + -45 + -9x = 165 + -45

Combine like terms: 45 + -45 = 0
0 + -9x = 165 + -45
-9x = 165 + -45

Combine like terms: 165 + -45 = 120
-9x = 120

Divide each side by '-9'.
x = -13.33333333

Simplifying
x = -13.33333333

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