7(-3+n)=21

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Solution for 7(-3+n)=21 equation: 


Simplifying
7(-3 + n) = 21
(-3 * 7 + n * 7) = 21
(-21 + 7n) = 21

Solving
-21 + 7n = 21

Solving for variable 'n'.

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

Add '21' to each side of the equation.
-21 + 21 + 7n = 21 + 21

Combine like terms: -21 + 21 = 0
0 + 7n = 21 + 21
7n = 21 + 21

Combine like terms: 21 + 21 = 42
7n = 42

Divide each side by '7'.
n = 6

Simplifying
n = 6

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