-3(n+7)=9-2n

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Solution for -3(n+7)=9-2n equation:


Simplifying
-3(n + 7) = 9 + -2n

Reorder the terms:
-3(7 + n) = 9 + -2n
(7 * -3 + n * -3) = 9 + -2n
(-21 + -3n) = 9 + -2n

Solving
-21 + -3n = 9 + -2n

Solving for variable 'n'.

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

Add '2n' to each side of the equation.
-21 + -3n + 2n = 9 + -2n + 2n

Combine like terms: -3n + 2n = -1n
-21 + -1n = 9 + -2n + 2n

Combine like terms: -2n + 2n = 0
-21 + -1n = 9 + 0
-21 + -1n = 9

Add '21' to each side of the equation.
-21 + 21 + -1n = 9 + 21

Combine like terms: -21 + 21 = 0
0 + -1n = 9 + 21
-1n = 9 + 21

Combine like terms: 9 + 21 = 30
-1n = 30

Divide each side by '-1'.
n = -30

Simplifying
n = -30

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