Question

rewrite the equation with one set of parentheses to make it true. 20 + 10 ÷ 7 - 2 = 22

Answer 1

Let's begin by identifying key information given to us:

$\begin{gathered} 20+10\div7-2=22​ \\ 20+10\div(7-2)=22​ \\ \Rightarrow20+10\div5=20+\frac{10}{5} \\ \Rightarrow20+2=22 \\ \\ \\ \\ \therefore20+10\div(7-2)=22 \end{gathered}$

Therefore, the rewritten equation is:

20 + 10\(7 - 2) = 22