2n-18=7(n+1)

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Solution for 2n-18=7(n+1) equation:


Simplifying
2n + -18 = 7(n + 1)

Reorder the terms:
-18 + 2n = 7(n + 1)

Reorder the terms:
-18 + 2n = 7(1 + n)
-18 + 2n = (1 * 7 + n * 7)
-18 + 2n = (7 + 7n)

Solving
-18 + 2n = 7 + 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.
-18 + 2n + -7n = 7 + 7n + -7n

Combine like terms: 2n + -7n = -5n
-18 + -5n = 7 + 7n + -7n

Combine like terms: 7n + -7n = 0
-18 + -5n = 7 + 0
-18 + -5n = 7

Add '18' to each side of the equation.
-18 + 18 + -5n = 7 + 18

Combine like terms: -18 + 18 = 0
0 + -5n = 7 + 18
-5n = 7 + 18

Combine like terms: 7 + 18 = 25
-5n = 25

Divide each side by '-5'.
n = -5

Simplifying
n = -5

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