Question

Simplify to create an equivalent expression 5+7(8r-2)

A 56r+3
B 56r+9
C 8r−9
D 56r−9
please  need help

Answer 1

5+56r-14=56r-9. The correct answer will be D.56r-9.

Answer 2

The correct option is D.

Explanation:

The given expression is

`5+7(8r-2)`

Using distributive property, the above expression can be written as

`5+7(8r)+7(-2)`
`[\because a(b+c)=ab+ac]`

`5+56r-14`

On combining like terms we get,

`56r+(5-14)`

`56r+(-9)`

`56r-9`

The expression 56r-9 is equivalent to the given expression.

Therefore the correct option is D.