-2(7-3n)-n=-20+7n

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Solution for -2(7-3n)-n=-20+7n equation:


Simplifying
-2(7 + -3n) + -1n = -20 + 7n
(7 * -2 + -3n * -2) + -1n = -20 + 7n
(-14 + 6n) + -1n = -20 + 7n

Combine like terms: 6n + -1n = 5n
-14 + 5n = -20 + 7n

Solving
-14 + 5n = -20 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
-14 + 5n + -7n = -20 + 7n + -7n

Combine like terms: 5n + -7n = -2n
-14 + -2n = -20 + 7n + -7n

Combine like terms: 7n + -7n = 0
-14 + -2n = -20 + 0
-14 + -2n = -20

Add '14' to each side of the equation.
-14 + 14 + -2n = -20 + 14

Combine like terms: -14 + 14 = 0
0 + -2n = -20 + 14
-2n = -20 + 14

Combine like terms: -20 + 14 = -6
-2n = -6

Divide each side by '-2'.
n = 3

Simplifying
n = 3

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