72(90+-1y)+y=90

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Solution for 72(90+-1y)+y=90 equation:


Simplifying
72(90 + -1y) + y = 90
(90 * 72 + -1y * 72) + y = 90
(6480 + -72y) + y = 90

Combine like terms: -72y + y = -71y
6480 + -71y = 90

Solving
6480 + -71y = 90

Solving for variable 'y'.

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

Add '-6480' to each side of the equation.
6480 + -6480 + -71y = 90 + -6480

Combine like terms: 6480 + -6480 = 0
0 + -71y = 90 + -6480
-71y = 90 + -6480

Combine like terms: 90 + -6480 = -6390
-71y = -6390

Divide each side by '-71'.
y = 90

Simplifying
y = 90

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