5n-7=8

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Solution for 5n-7=8 equation: 


Simplifying
5n + -7 = 8

Reorder the terms:
-7 + 5n = 8

Solving
-7 + 5n = 8

Solving for variable 'n'.

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

Add '7' to each side of the equation.
-7 + 7 + 5n = 8 + 7

Combine like terms: -7 + 7 = 0
0 + 5n = 8 + 7
5n = 8 + 7

Combine like terms: 8 + 7 = 15
5n = 15

Divide each side by '5'.
n = 3

Simplifying
n = 3

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