Question

Simplify [20 – (3 + 4) • 2]

Answer 1

`6`

Explanation:

Order of Operations: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. (P.E.M.D.A.S)
`please`
`excuse`
`my`
`dear`
`aunt`
`sally`.

Begin with solving the parentheses

[20 - (3+4) × 2] ⇒ [20 - 7 × 2]

Next multiplication is the next highest operation

[20 - 7 × 2] ⇒ [20 - 14]

Next and last on the list subtraction

[20 - 14] ⇒ [6]

Answer 2

[ 20_(7)•2]

[ 20_7•2]

[ 20_14]

[ 6]