3(3+4)=n+15

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Solution for 3(3+4)=n+15 equation: 


Simplifying
3(3 + 4) = n + 15

Combine like terms: 3 + 4 = 7
3(7) = n + 15

Multiply 3 * 7
21 = n + 15

Reorder the terms:
21 = 15 + n

Solving
21 = 15 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
21 + -1n = 15 + n + -1n

Combine like terms: n + -1n = 0
21 + -1n = 15 + 0
21 + -1n = 15

Add '-21' to each side of the equation.
21 + -21 + -1n = 15 + -21

Combine like terms: 21 + -21 = 0
0 + -1n = 15 + -21
-1n = 15 + -21

Combine like terms: 15 + -21 = -6
-1n = -6

Divide each side by '-1'.
n = 6

Simplifying
n = 6

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