Question

What is the answer to 10|-7n| < 70

Answer 1

-1 < n < 1.

Explanation:

10|-7n| < 70

|-7n| < 7

The left side is an absolute number ( always positive)

and if this was an equation:

-7n is either positive or negative

so, n is either positive 1 or -negative 1

So we have:

-7n < 7

n > -1

7n < 7

n < 1