3(n-3)-(7-n)=

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Solution for 3(n-3)-(7-n)= equation:


Simplifying
3(n + -3) + -1(7 + -1n) = 0

Reorder the terms:
3(-3 + n) + -1(7 + -1n) = 0
(-3 * 3 + n * 3) + -1(7 + -1n) = 0
(-9 + 3n) + -1(7 + -1n) = 0
-9 + 3n + (7 * -1 + -1n * -1) = 0
-9 + 3n + (-7 + 1n) = 0

Reorder the terms:
-9 + -7 + 3n + 1n = 0

Combine like terms: -9 + -7 = -16
-16 + 3n + 1n = 0

Combine like terms: 3n + 1n = 4n
-16 + 4n = 0

Solving
-16 + 4n = 0

Solving for variable 'n'.

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

Add '16' to each side of the equation.
-16 + 16 + 4n = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 4n = 0 + 16
4n = 0 + 16

Combine like terms: 0 + 16 = 16
4n = 16

Divide each side by '4'.
n = 4

Simplifying
n = 4

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