Here is the equation you need:
3(x + 9) = 2x - 7
You finish.
Answer:
Step-by-step explanation:
the total cost for this question is $12.10.
let me know if this helped.
You can use the trigonometric identity

.

The requirement that

eliminates -1/6 from being another solution.
$580 laptop/ $40 earned a week = about 14.5 weeks to buy the laptop