7n-5=21-5n

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Solution for 7n-5=21-5n equation:


Simplifying
7n + -5 = 21 + -5n

Reorder the terms:
-5 + 7n = 21 + -5n

Solving
-5 + 7n = 21 + -5n

Solving for variable 'n'.

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

Add '5n' to each side of the equation.
-5 + 7n + 5n = 21 + -5n + 5n

Combine like terms: 7n + 5n = 12n
-5 + 12n = 21 + -5n + 5n

Combine like terms: -5n + 5n = 0
-5 + 12n = 21 + 0
-5 + 12n = 21

Add '5' to each side of the equation.
-5 + 5 + 12n = 21 + 5

Combine like terms: -5 + 5 = 0
0 + 12n = 21 + 5
12n = 21 + 5

Combine like terms: 21 + 5 = 26
12n = 26

Divide each side by '12'.
n = 2.166666667

Simplifying
n = 2.166666667

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