3(n-30)=45

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Solution for 3(n-30)=45 equation: 


Simplifying
3(n + -30) = 45

Reorder the terms:
3(-30 + n) = 45
(-30 * 3 + n * 3) = 45
(-90 + 3n) = 45

Solving
-90 + 3n = 45

Solving for variable 'n'.

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

Add '90' to each side of the equation.
-90 + 90 + 3n = 45 + 90

Combine like terms: -90 + 90 = 0
0 + 3n = 45 + 90
3n = 45 + 90

Combine like terms: 45 + 90 = 135
3n = 135

Divide each side by '3'.
n = 45

Simplifying
n = 45

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