3(n-7)-(8-n)=

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


Simplifying
3(n + -7) + -1(8 + -1n) = 0

Reorder the terms:
3(-7 + n) + -1(8 + -1n) = 0
(-7 * 3 + n * 3) + -1(8 + -1n) = 0
(-21 + 3n) + -1(8 + -1n) = 0
-21 + 3n + (8 * -1 + -1n * -1) = 0
-21 + 3n + (-8 + 1n) = 0

Reorder the terms:
-21 + -8 + 3n + 1n = 0

Combine like terms: -21 + -8 = -29
-29 + 3n + 1n = 0

Combine like terms: 3n + 1n = 4n
-29 + 4n = 0

Solving
-29 + 4n = 0

Solving for variable 'n'.

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

Add '29' to each side of the equation.
-29 + 29 + 4n = 0 + 29

Combine like terms: -29 + 29 = 0
0 + 4n = 0 + 29
4n = 0 + 29

Combine like terms: 0 + 29 = 29
4n = 29

Divide each side by '4'.
n = 7.25

Simplifying
n = 7.25

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