Question

Deon has 22 new magazines to read.Let M be the number of magazines he would have left to read after reading Rof them.Write an equation relating M to R. Then use this equation to find the number of magazines he would have left to read after reading 12 of them.

Answer 1

We know that

• Deon has 22 new magazines.

,

• M, represents the number of magazines left.

,

• R, represents the number of magazines already read.

So, if he already read 12 magazines, we define the following equation.

`\begin{gathered} M+R=22 \\ M+12=22 \\ M=22-12 \\ M=10 \end{gathered}`

Therefore, the numbers of magazines left to read are 10.