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Blizzard [7]
2 years ago
10

Select the correct choice below and fill in any answer boxes in your choice

Mathematics
1 answer:
soldier1979 [14.2K]2 years ago
4 0

So we need to solve:

\frac{13}{y}+\frac{5}{y}=3

First is important to note that both terms on the left side of the equation have a common factor because they are both divided by y. Then:

\begin{gathered} \frac{13}{y}+\frac{5}{y}=\frac{1}{y}(13+5)=3 \\ \frac{13+5}{y}=\frac{18}{y}=3 \end{gathered}

Then:

\begin{gathered} \frac{18}{y}=3 \\ 18=3y \\ \frac{18}{3}=y \\ y=\frac{18}{3}=6 \end{gathered}

So the solution is y=6. Then option A is correct and you need to write the 6 between the symbols { }.

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