20-2n=15-7n

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Solution for 20-2n=15-7n equation:


Simplifying
20 + -2n = 15 + -7n

Solving
20 + -2n = 15 + -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.
20 + -2n + 7n = 15 + -7n + 7n

Combine like terms: -2n + 7n = 5n
20 + 5n = 15 + -7n + 7n

Combine like terms: -7n + 7n = 0
20 + 5n = 15 + 0
20 + 5n = 15

Add '-20' to each side of the equation.
20 + -20 + 5n = 15 + -20

Combine like terms: 20 + -20 = 0
0 + 5n = 15 + -20
5n = 15 + -20

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

Divide each side by '5'.
n = -1

Simplifying
n = -1

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