Answer:
The number is 4.
Step-by-step explanation:
The difference of twice a number and 12 is 2x - 12.
Multiplying by 5 gives 5(2x - 12)
So 5(2x - 12) = -20
Solving for x
10x - 60 = -20
10x = -20 + 60 = 40
x = 40/10
x = 4.
I think that the only way you would get no solution, it would be zero
You would mutiple 22000 by 5 then divide that by .2 and that would be your answer
100 times 35=3500 she can go 3500 miles on the free gas. she can go round trip to see her cousin on free gas because 1650+1650 is less than 3500