(n-10)*3=21

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Solution for (n-10)*3=21 equation:


Simplifying
(n + -10) * 3 = 21

Reorder the terms:
(-10 + n) * 3 = 21

Reorder the terms for easier multiplication:
3(-10 + n) = 21
(-10 * 3 + n * 3) = 21
(-30 + 3n) = 21

Solving
-30 + 3n = 21

Solving for variable 'n'.

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

Add '30' to each side of the equation.
-30 + 30 + 3n = 21 + 30

Combine like terms: -30 + 30 = 0
0 + 3n = 21 + 30
3n = 21 + 30

Combine like terms: 21 + 30 = 51
3n = 51

Divide each side by '3'.
n = 17

Simplifying
n = 17

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