90+90+n+n+n+n=720

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Solution for 90+90+n+n+n+n=720 equation:


Simplifying
90 + 90 + n + n + n + n = 720

Combine like terms: 90 + 90 = 180
180 + n + n + n + n = 720

Combine like terms: n + n = 2n
180 + 2n + n + n = 720

Combine like terms: 2n + n = 3n
180 + 3n + n = 720

Combine like terms: 3n + n = 4n
180 + 4n = 720

Solving
180 + 4n = 720

Solving for variable 'n'.

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

Add '-180' to each side of the equation.
180 + -180 + 4n = 720 + -180

Combine like terms: 180 + -180 = 0
0 + 4n = 720 + -180
4n = 720 + -180

Combine like terms: 720 + -180 = 540
4n = 540

Divide each side by '4'.
n = 135

Simplifying
n = 135

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