45=12-3x+15

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Solution for 45=12-3x+15 equation:


Simplifying
45 = 12 + -3x + 15

Reorder the terms:
45 = 12 + 15 + -3x

Combine like terms: 12 + 15 = 27
45 = 27 + -3x

Solving
45 = 27 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
45 + 3x = 27 + -3x + 3x

Combine like terms: -3x + 3x = 0
45 + 3x = 27 + 0
45 + 3x = 27

Add '-45' to each side of the equation.
45 + -45 + 3x = 27 + -45

Combine like terms: 45 + -45 = 0
0 + 3x = 27 + -45
3x = 27 + -45

Combine like terms: 27 + -45 = -18
3x = -18

Divide each side by '3'.
x = -6

Simplifying
x = -6

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