7n-(8n-2)=-18+3n

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Solution for 7n-(8n-2)=-18+3n equation:


Simplifying
7n + -1(8n + -2) = -18 + 3n

Reorder the terms:
7n + -1(-2 + 8n) = -18 + 3n
7n + (-2 * -1 + 8n * -1) = -18 + 3n
7n + (2 + -8n) = -18 + 3n

Reorder the terms:
2 + 7n + -8n = -18 + 3n

Combine like terms: 7n + -8n = -1n
2 + -1n = -18 + 3n

Solving
2 + -1n = -18 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
2 + -1n + -3n = -18 + 3n + -3n

Combine like terms: -1n + -3n = -4n
2 + -4n = -18 + 3n + -3n

Combine like terms: 3n + -3n = 0
2 + -4n = -18 + 0
2 + -4n = -18

Add '-2' to each side of the equation.
2 + -2 + -4n = -18 + -2

Combine like terms: 2 + -2 = 0
0 + -4n = -18 + -2
-4n = -18 + -2

Combine like terms: -18 + -2 = -20
-4n = -20

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

Simplifying
n = 5

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