7n-3=2n-18

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Solution for 7n-3=2n-18 equation:


Simplifying
7n + -3 = 2n + -18

Reorder the terms:
-3 + 7n = 2n + -18

Reorder the terms:
-3 + 7n = -18 + 2n

Solving
-3 + 7n = -18 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-3 + 7n + -2n = -18 + 2n + -2n

Combine like terms: 7n + -2n = 5n
-3 + 5n = -18 + 2n + -2n

Combine like terms: 2n + -2n = 0
-3 + 5n = -18 + 0
-3 + 5n = -18

Add '3' to each side of the equation.
-3 + 3 + 5n = -18 + 3

Combine like terms: -3 + 3 = 0
0 + 5n = -18 + 3
5n = -18 + 3

Combine like terms: -18 + 3 = -15
5n = -15

Divide each side by '5'.
n = -3

Simplifying
n = -3

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