Question

Which number is not a solution to3(x+4)−2≥7?-2-12 1

Answer 1

The inequality is:

`3(x+4)-2\ge7`

now we solve the inequality for x

`\begin{gathered} 3(x+4)\ge7+2 \\ 3(x+4)\ge9 \\ x+4\ge(9)/(3) \\ x+4\ge3 \\ x\ge3-4 \\ x\ge-1 \end{gathered}`

This means that all the number, from -1 to infinit are solution of the inequality, and the only option that is not a solution is a) -2