Question

What is the value of the variable expression, (r+s)÷4+r; use r=14 and s=-2?

Answer 1

Using BODMAS rule, first the terms inside brackets is simplified. Then, the order of doing operations are done in the order division, multiplication, addition and subtraction.

The expression is (r+s)÷4+r, where use r=14 and s=-2.

Put r=14 and s=-2 in (r+s)÷4+r.

`\begin{gathered} (r+s)/4+r=(14+(-2))/4+14 \\ =(14-2))/4+14 \\ Do\text{ operation inside brackets} \\ =12/4+14 \\ Do\text{ division} \\ =3+14 \\ =17 \end{gathered}`

Therefore, the value of the expression is 17.