-3(7y+6)+21y=-18

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Solution for -3(7y+6)+21y=-18 equation: 


Simplifying
-3(7y + 6) + 21y = -18

Reorder the terms:
-3(6 + 7y) + 21y = -18
(6 * -3 + 7y * -3) + 21y = -18
(-18 + -21y) + 21y = -18

Combine like terms: -21y + 21y = 0
-18 + 0 = -18
-18 = -18

Add '18' to each side of the equation.
-18 + 18 = -18 + 18

Combine like terms: -18 + 18 = 0
0 = -18 + 18

Combine like terms: -18 + 18 = 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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