2(-3)+3y=21

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Solution for 2(-3)+3y=21 equation: 


Simplifying
2(-3) + 3y = 21

Multiply 2 * -3
-6 + 3y = 21

Solving
-6 + 3y = 21

Solving for variable 'y'.

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

Add '6' to each side of the equation.
-6 + 6 + 3y = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 3y = 21 + 6
3y = 21 + 6

Combine like terms: 21 + 6 = 27
3y = 27

Divide each side by '3'.
y = 9

Simplifying
y = 9

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