21+3y=o

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Solution for 21+3y=o equation: 


Simplifying
21 + 3y = o

Solving
21 + 3y = o

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + 3y = -21 + o

Combine like terms: 21 + -21 = 0
0 + 3y = -21 + o
3y = -21 + o

Divide each side by '3'.
y = -7 + 0.3333333333o

Simplifying
y = -7 + 0.3333333333o

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