7(n+3)=8(n+1)

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


Simplifying
7(n + 3) = 8(n + 1)

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

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

Solving
21 + 7n = 8 + 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.
21 + 7n + -8n = 8 + 8n + -8n

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

Combine like terms: 8n + -8n = 0
21 + -1n = 8 + 0
21 + -1n = 8

Add '-21' to each side of the equation.
21 + -21 + -1n = 8 + -21

Combine like terms: 21 + -21 = 0
0 + -1n = 8 + -21
-1n = 8 + -21

Combine like terms: 8 + -21 = -13
-1n = -13

Divide each side by '-1'.
n = 13

Simplifying
n = 13

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