4y=30-21

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Solution for 4y=30-21 equation: 


Simplifying
4y = 30 + -21

Combine like terms: 30 + -21 = 9
4y = 9

Solving
4y = 9

Solving for variable 'y'.

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

Divide each side by '4'.
y = 2.25

Simplifying
y = 2.25

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