3x+45=12x

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Solution for 3x+45=12x equation:


Simplifying
3x + 45 = 12x

Reorder the terms:
45 + 3x = 12x

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

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

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

Add '-45' to each side of the equation.
45 + -45 + -9x = 0 + -45

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

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

Divide each side by '-9'.
x = 5

Simplifying
x = 5

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