2(-21+7y)-14y=-42

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Solution for 2(-21+7y)-14y=-42 equation: 


Simplifying
2(-21 + 7y) + -14y = -42
(-21 * 2 + 7y * 2) + -14y = -42
(-42 + 14y) + -14y = -42

Combine like terms: 14y + -14y = 0
-42 + 0 = -42
-42 = -42

Add '42' to each side of the equation.
-42 + 42 = -42 + 42

Combine like terms: -42 + 42 = 0
0 = -42 + 42

Combine like terms: -42 + 42 = 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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