-8n+7(4n+5)=115

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Solution for -8n+7(4n+5)=115 equation:


Simplifying
-8n + 7(4n + 5) = 115

Reorder the terms:
-8n + 7(5 + 4n) = 115
-8n + (5 * 7 + 4n * 7) = 115
-8n + (35 + 28n) = 115

Reorder the terms:
35 + -8n + 28n = 115

Combine like terms: -8n + 28n = 20n
35 + 20n = 115

Solving
35 + 20n = 115

Solving for variable 'n'.

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

Add '-35' to each side of the equation.
35 + -35 + 20n = 115 + -35

Combine like terms: 35 + -35 = 0
0 + 20n = 115 + -35
20n = 115 + -35

Combine like terms: 115 + -35 = 80
20n = 80

Divide each side by '20'.
n = 4

Simplifying
n = 4

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