-21+8n=3(1+7n)-5n

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Solution for -21+8n=3(1+7n)-5n equation:


Simplifying
-21 + 8n = 3(1 + 7n) + -5n
-21 + 8n = (1 * 3 + 7n * 3) + -5n
-21 + 8n = (3 + 21n) + -5n

Combine like terms: 21n + -5n = 16n
-21 + 8n = 3 + 16n

Solving
-21 + 8n = 3 + 16n

Solving for variable 'n'.

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

Add '-16n' to each side of the equation.
-21 + 8n + -16n = 3 + 16n + -16n

Combine like terms: 8n + -16n = -8n
-21 + -8n = 3 + 16n + -16n

Combine like terms: 16n + -16n = 0
-21 + -8n = 3 + 0
-21 + -8n = 3

Add '21' to each side of the equation.
-21 + 21 + -8n = 3 + 21

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

Combine like terms: 3 + 21 = 24
-8n = 24

Divide each side by '-8'.
n = -3

Simplifying
n = -3

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