18=7n+2n

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Solution for 18=7n+2n equation:


Simplifying
18 = 7n + 2n

Combine like terms: 7n + 2n = 9n
18 = 9n

Solving
18 = 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
18 + -9n = 9n + -9n

Combine like terms: 9n + -9n = 0
18 + -9n = 0

Add '-18' to each side of the equation.
18 + -18 + -9n = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -9n = 0 + -18
-9n = 0 + -18

Combine like terms: 0 + -18 = -18
-9n = -18

Divide each side by '-9'.
n = 2

Simplifying
n = 2

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