21+9X=3Y

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Solution for 21+9X=3Y equation: 


Simplifying
21 + 9X = 3Y

Solving
21 + 9X = 3Y

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + -21 + 9X = -21 + 3Y

Combine like terms: 21 + -21 = 0
0 + 9X = -21 + 3Y
9X = -21 + 3Y

Divide each side by '9'.
X = -2.333333333 + 0.3333333333Y

Simplifying
X = -2.333333333 + 0.3333333333Y

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