9n-3=7(n+3)

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Solution for 9n-3=7(n+3) equation:


Simplifying
9n + -3 = 7(n + 3)

Reorder the terms:
-3 + 9n = 7(n + 3)

Reorder the terms:
-3 + 9n = 7(3 + n)
-3 + 9n = (3 * 7 + n * 7)
-3 + 9n = (21 + 7n)

Solving
-3 + 9n = 21 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
-3 + 9n + -7n = 21 + 7n + -7n

Combine like terms: 9n + -7n = 2n
-3 + 2n = 21 + 7n + -7n

Combine like terms: 7n + -7n = 0
-3 + 2n = 21 + 0
-3 + 2n = 21

Add '3' to each side of the equation.
-3 + 3 + 2n = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 2n = 21 + 3
2n = 21 + 3

Combine like terms: 21 + 3 = 24
2n = 24

Divide each side by '2'.
n = 12

Simplifying
n = 12

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