660=10(66+-2y)+20y

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Solution for 660=10(66+-2y)+20y equation: 


Simplifying
660 = 10(66 + -2y) + 20y
660 = (66 * 10 + -2y * 10) + 20y
660 = (660 + -20y) + 20y

Combine like terms: -20y + 20y = 0
660 = 660 + 0
660 = 660

Add '-660' to each side of the equation.
660 + -660 = 660 + -660

Combine like terms: 660 + -660 = 0
0 = 660 + -660

Combine like terms: 660 + -660 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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