21+5y=-2y

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Solution for 21+5y=-2y equation:


Simplifying
21 + 5y = -2y

Solving
21 + 5y = -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
21 + 5y + 2y = -2y + 2y

Combine like terms: 5y + 2y = 7y
21 + 7y = -2y + 2y

Combine like terms: -2y + 2y = 0
21 + 7y = 0

Add '-21' to each side of the equation.
21 + -21 + 7y = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 7y = 0 + -21
7y = 0 + -21

Combine like terms: 0 + -21 = -21
7y = -21

Divide each side by '7'.
y = -3

Simplifying
y = -3

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