Solve for y
y = \frac{4}{3} = 1\frac{1}{3} \approx 1.333333333
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-3+21y=25
Combine 6y and 15y to get 21y.
21y=25+3
Add 3 to both sides.
21y=28
Add 25 and 3 to get 28.
y=\frac{28}{21}
Divide both sides by 21.
y=\frac{4}{3}
Reduce the fraction \frac{28}{21} to lowest terms by extracting and canceling out 7.
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