Question

Translate the sentence into an inequality.

The difference of twice a number and 7 is greater than -20 .
Use the variable b for the unknown number.

Answer 1

2b - 7 > -20

Explanation:

Let b = the unknown number

You know that twice a number = 2b

The difference means to subtract.

This leads to 2b - 7.

The greater than symbol is > as you know.

We now put it all together.

2b - 7 > -20