15x-45=12x+18

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Solution for 15x-45=12x+18 equation:


Simplifying
15x + -45 = 12x + 18

Reorder the terms:
-45 + 15x = 12x + 18

Reorder the terms:
-45 + 15x = 18 + 12x

Solving
-45 + 15x = 18 + 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 + 15x + -12x = 18 + 12x + -12x

Combine like terms: 15x + -12x = 3x
-45 + 3x = 18 + 12x + -12x

Combine like terms: 12x + -12x = 0
-45 + 3x = 18 + 0
-45 + 3x = 18

Add '45' to each side of the equation.
-45 + 45 + 3x = 18 + 45

Combine like terms: -45 + 45 = 0
0 + 3x = 18 + 45
3x = 18 + 45

Combine like terms: 18 + 45 = 63
3x = 63

Divide each side by '3'.
x = 21

Simplifying
x = 21

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