Question

Could you help me understand how to find equivalent equations like this

Answer 1

For the given equation, we will find the value of (a) to find the equivalent equations.

First equation:

`\begin{gathered} 3a+6=15 \\ 3a=15-6 \\ 3a=9 \\ a=(9)/(3)=3 \end{gathered}`

Second equation:

`\begin{gathered} 3a=9 \\ a=(9)/(3)=3 \end{gathered}`

Third equation:

`\begin{gathered} a+2=5 \\ a=5-2 \\ a=3 \end{gathered}`

Fourth equation:

`\begin{gathered} (1)/(3)a=1\rightarrow(*3) \\ 3\cdot(1)/(3)a=3\cdot1 \\ \\ a=3 \end{gathered}`

As shown all the equations given the same value of a = 3

So, the answer will be Y