7n+3=15n+9

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Solution for 7n+3=15n+9 equation:


Simplifying
7n + 3 = 15n + 9

Reorder the terms:
3 + 7n = 15n + 9

Reorder the terms:
3 + 7n = 9 + 15n

Solving
3 + 7n = 9 + 15n

Solving for variable 'n'.

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

Add '-15n' to each side of the equation.
3 + 7n + -15n = 9 + 15n + -15n

Combine like terms: 7n + -15n = -8n
3 + -8n = 9 + 15n + -15n

Combine like terms: 15n + -15n = 0
3 + -8n = 9 + 0
3 + -8n = 9

Add '-3' to each side of the equation.
3 + -3 + -8n = 9 + -3

Combine like terms: 3 + -3 = 0
0 + -8n = 9 + -3
-8n = 9 + -3

Combine like terms: 9 + -3 = 6
-8n = 6

Divide each side by '-8'.
n = -0.75

Simplifying
n = -0.75

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