7n-3=3n+15

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Solution for 7n-3=3n+15 equation:


Simplifying
7n + -3 = 3n + 15

Reorder the terms:
-3 + 7n = 3n + 15

Reorder the terms:
-3 + 7n = 15 + 3n

Solving
-3 + 7n = 15 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-3 + 7n + -3n = 15 + 3n + -3n

Combine like terms: 7n + -3n = 4n
-3 + 4n = 15 + 3n + -3n

Combine like terms: 3n + -3n = 0
-3 + 4n = 15 + 0
-3 + 4n = 15

Add '3' to each side of the equation.
-3 + 3 + 4n = 15 + 3

Combine like terms: -3 + 3 = 0
0 + 4n = 15 + 3
4n = 15 + 3

Combine like terms: 15 + 3 = 18
4n = 18

Divide each side by '4'.
n = 4.5

Simplifying
n = 4.5

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