Question

21. What is the solution of 3x +9≤15

Answer 1

INFORMATION:

We have the following inequality

`3x+9\leq15`

And we must solve it

STEP BY STEP EXPLANATION:

To solve it, we must:

1. Subtract 9 from both sides

`\begin{gathered} 3x+9-9\leq15-9 \\ 3x\leq6 \end{gathered}`

2. Divide both sides by 3

`(3x)/(3)\leq(6)/(3)`

3. Simplify

`x\leq2`

Finally, the solution of the inequality is x ≤ 2

ANSWER:

The solution for 3x + 9 ≤ 15 is x ≤ 2