-8n+7(4n+3)=121

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Solution for -8n+7(4n+3)=121 equation:


Simplifying
-8n + 7(4n + 3) = 121

Reorder the terms:
-8n + 7(3 + 4n) = 121
-8n + (3 * 7 + 4n * 7) = 121
-8n + (21 + 28n) = 121

Reorder the terms:
21 + -8n + 28n = 121

Combine like terms: -8n + 28n = 20n
21 + 20n = 121

Solving
21 + 20n = 121

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + 20n = 121 + -21

Combine like terms: 21 + -21 = 0
0 + 20n = 121 + -21
20n = 121 + -21

Combine like terms: 121 + -21 = 100
20n = 100

Divide each side by '20'.
n = 5

Simplifying
n = 5

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