45=12+3n

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Solution for 45=12+3n equation:


Simplifying
45 = 12 + 3n

Solving
45 = 12 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
45 + -3n = 12 + 3n + -3n

Combine like terms: 3n + -3n = 0
45 + -3n = 12 + 0
45 + -3n = 12

Add '-45' to each side of the equation.
45 + -45 + -3n = 12 + -45

Combine like terms: 45 + -45 = 0
0 + -3n = 12 + -45
-3n = 12 + -45

Combine like terms: 12 + -45 = -33
-3n = -33

Divide each side by '-3'.
n = 11

Simplifying
n = 11

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