Question

7x+39≥53 AND 16x+15>31 {solve for x}

CORRECT ANSWER gets 25 points. if its not right, then you get nothing. good luck!

Answer 1

Answer: x>2

Step-by-step explanation: The other answer is wrong..

Answer 2

A.
`7x+39 \geq 53`

=>
`7x \geq 53-39`

=>
`7x \geq 14`

=>
`x\geq 2`

The solution is the interval is [2,∞)

B.
`16x+15>31`

=>
`16x>31-15`

=>
`16x>16`

=> x >1

The solution is (1,∞)

Now, the solution of the inequality A AND B is equal to

[2,∞) ∩ (1,∞)=[2,∞)