8n+21=7(n+2)

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


Simplifying
8n + 21 = 7(n + 2)

Reorder the terms:
21 + 8n = 7(n + 2)

Reorder the terms:
21 + 8n = 7(2 + n)
21 + 8n = (2 * 7 + n * 7)
21 + 8n = (14 + 7n)

Solving
21 + 8n = 14 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
21 + 8n + -7n = 14 + 7n + -7n

Combine like terms: 8n + -7n = 1n
21 + 1n = 14 + 7n + -7n

Combine like terms: 7n + -7n = 0
21 + 1n = 14 + 0
21 + 1n = 14

Add '-21' to each side of the equation.
21 + -21 + 1n = 14 + -21

Combine like terms: 21 + -21 = 0
0 + 1n = 14 + -21
1n = 14 + -21

Combine like terms: 14 + -21 = -7
1n = -7

Divide each side by '1'.
n = -7

Simplifying
n = -7

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