Question

If 8-2x<12 is -2 a solution to the inequality

Answer 1

Answer: No

Step-by-step explanation: To determine whether x = -2 is a solution to the inequality, substitute a -2 in for r.

So we have 8 - 2(-2) < 12.

Notice that I used parentheses.

This is a great habit to get into when

substituting numbers in for variables.

So we have 8 - (-4) which can be changed to 8 + (+4) or +12.

Since 12 is not less than 12, -2 is not a solution.

Answer 2

no

Explanation:

Let's plug in -2 for x.

8 - 2 (-2) <12

8 + 4 < 12

12 < 12

Since this is a false statement, -2 is not a solution to the inequality.