Kyle drove x hours
Sally drove x + 7 hours
Added together they both drove 2x + 7 hours
2x +7 = 35 hours
Subtract 7 from both sides:
2x = 28
Divide both sides by 2:
x = 14
Kyle drove 14 hours
Sally drove 21 hours
Answer:
<h2>n = 25</h2>
Step-by-step explanation:

Answer: Small number = 15.
Larger number = 20
Step-by-step explanation:
Let the smaller number be x.
The larger of two numbers is five more than the smaller. Thus, the larger number is x+5.
Twice the larger is twenty less than four times the smaller. This can.be written as:
2(x + 5) = 4x - 20
2x + 10 = 4x - 20
2x - 4x = -20 - 10
-2x = -30
x = 30/2
x = 15
The smaller number is 15
Larger number = x + 5 = 15 + 5 = 20