Question

I need help with this please! :) Also, the problem has to be shown and answered in PEMDAS backwards so: addition and subtraction solved before multiplication and division. Btw this is a 2 step equation problem!thanks :)

Answer 1

`a=30.2`

Step-by-step explanation

We want to find a from the equation:

`7=(a-9.2)/(3)`

The first step is to multiply both sides of the equation by 3:

`\begin{gathered} 7\cdot3=a-9.2 \\ \Rightarrow21=a-9.2 \end{gathered}`

The next step is to add 9.2 to both sides of the equation:

`\begin{gathered} 21+9.2=a-9.2+9.2 \\ \Rightarrow a=30.2 \end{gathered}`

That is the answer.