2-2(n-3)-3n=21+7

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Solution for 2-2(n-3)-3n=21+7 equation:


Simplifying
2 + -2(n + -3) + -3n = 21 + 7

Reorder the terms:
2 + -2(-3 + n) + -3n = 21 + 7
2 + (-3 * -2 + n * -2) + -3n = 21 + 7
2 + (6 + -2n) + -3n = 21 + 7

Combine like terms: 2 + 6 = 8
8 + -2n + -3n = 21 + 7

Combine like terms: -2n + -3n = -5n
8 + -5n = 21 + 7

Combine like terms: 21 + 7 = 28
8 + -5n = 28

Solving
8 + -5n = 28

Solving for variable 'n'.

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

Add '-8' to each side of the equation.
8 + -8 + -5n = 28 + -8

Combine like terms: 8 + -8 = 0
0 + -5n = 28 + -8
-5n = 28 + -8

Combine like terms: 28 + -8 = 20
-5n = 20

Divide each side by '-5'.
n = -4

Simplifying
n = -4

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