Question

Translate the sentence into an equationtwice the difference of a number and 4 equals 5. use the variable y for the unknown number

Answer 1

Given:

twice the difference of a number and 4 equals 5.

Let the number = y

The difference means the sign ( - )

The difference of a number and 4 will be ( y - 4 )

Twice means multiplying by 2

so, the expression will be:

2 ( y - 4 ) = 5