2-7(-3n+1)=8n+21

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Solution for 2-7(-3n+1)=8n+21 equation:


Simplifying
2 + -7(-3n + 1) = 8n + 21

Reorder the terms:
2 + -7(1 + -3n) = 8n + 21
2 + (1 * -7 + -3n * -7) = 8n + 21
2 + (-7 + 21n) = 8n + 21

Combine like terms: 2 + -7 = -5
-5 + 21n = 8n + 21

Reorder the terms:
-5 + 21n = 21 + 8n

Solving
-5 + 21n = 21 + 8n

Solving for variable 'n'.

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

Add '-8n' to each side of the equation.
-5 + 21n + -8n = 21 + 8n + -8n

Combine like terms: 21n + -8n = 13n
-5 + 13n = 21 + 8n + -8n

Combine like terms: 8n + -8n = 0
-5 + 13n = 21 + 0
-5 + 13n = 21

Add '5' to each side of the equation.
-5 + 5 + 13n = 21 + 5

Combine like terms: -5 + 5 = 0
0 + 13n = 21 + 5
13n = 21 + 5

Combine like terms: 21 + 5 = 26
13n = 26

Divide each side by '13'.
n = 2

Simplifying
n = 2

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