Question

75% x y + 3/4 x y + y = 30

Answer 1

\(75\%\times y+\frac{3}{4}\times y+y=30\)

\(y\times\left(75\%+\frac{3}{4}+1\right)=30\)

\(\frac{5}{2}\times y=30\)

\(y=30:\frac{5}{2}\)

\(y=12\)

Answer 2

\(75\%\times y+\frac{3}{4}\times y+y=30\)

\(y=x\left(\frac{3}{4}+\frac{3}{4}+1\right)=30\)

\(y=x.2,5=30\)

\(y=30:2,5\)

\(y=12\)

Answer 3

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