Question

Which is not a solution of 3x-5<17?

-4
5
7
12

Answer 1

Explanation:

Substitute -4, 5, 7, 12 into the inequality then solve:

`3( - 4) - 5 < 17`

`- 17 < 17`

Is a solution.

`3( 5) - 5 < 17`

`10 < 17`

Is a solution.

`3(7) - 5 < 17`

`16 < 17`

Is a solution.

`3( 12) - 5 < 17`

`31 < 17`

Is not a solution.

12 is not a solution.