9-3(n+4)-n=-7

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Solution for 9-3(n+4)-n=-7 equation:


Simplifying
9 + -3(n + 4) + -1n = -7

Reorder the terms:
9 + -3(4 + n) + -1n = -7
9 + (4 * -3 + n * -3) + -1n = -7
9 + (-12 + -3n) + -1n = -7

Combine like terms: 9 + -12 = -3
-3 + -3n + -1n = -7

Combine like terms: -3n + -1n = -4n
-3 + -4n = -7

Solving
-3 + -4n = -7

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + -4n = -7 + 3

Combine like terms: -3 + 3 = 0
0 + -4n = -7 + 3
-4n = -7 + 3

Combine like terms: -7 + 3 = -4
-4n = -4

Divide each side by '-4'.
n = 1

Simplifying
n = 1

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