7n+5=2n+20

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Solution for 7n+5=2n+20 equation:


Simplifying
7n + 5 = 2n + 20

Reorder the terms:
5 + 7n = 2n + 20

Reorder the terms:
5 + 7n = 20 + 2n

Solving
5 + 7n = 20 + 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.
5 + 7n + -2n = 20 + 2n + -2n

Combine like terms: 7n + -2n = 5n
5 + 5n = 20 + 2n + -2n

Combine like terms: 2n + -2n = 0
5 + 5n = 20 + 0
5 + 5n = 20

Add '-5' to each side of the equation.
5 + -5 + 5n = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 5n = 20 + -5
5n = 20 + -5

Combine like terms: 20 + -5 = 15
5n = 15

Divide each side by '5'.
n = 3

Simplifying
n = 3

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