Last week Tim had seventeen dollars. He washed cars over the weekend and now has ninety-one dollars. How much money did he make washing cars?
x = 74 dollars
200
x - 7 = 13
x = 20
200
4x – 7 = 13
x = 5
200
−10 = 10(k−9)
x = 8
200
p−1 = 5p+3p−8
x = 1
200
Carlos is trying to read 12 pages of his book a night. The book has 156 pages. How many days will it take him to finish the book?
x = 13 days
300
-104 = 8x
x = -13
300
6 = (a/4) + 2
a = 16
300
144 = −12(x+5)
x = -17
300
5n+34 = −2(1−7n)
n = 4
300
Tim spent half of his allowance going to the movies. He washed the family car and earned 8 dollars. What is his weekly allowance if he ended with 15 dollars?
x = 14 dollars
400
-126 = 14k
k = -9
400
9x - 7 = -7
x = 0
400
7(9+k) = 84
k = 3
400
24a−22 = −4(1−6a)
No solution
400
Oceanside Bike Rental Shop charges 17 dollars plus 7 dollars an hour for renting a bike. Keith paid 80 dollars to rent a bike. How many hours did he pay to have the bike checked out?
x = 9 hours
500
-6 = b/18
b = -108
500
-1 = (5+x)/6
x = -11
500
3(x-5)-4 = 17
x = 12
500
−5(1−5x)+5(−8x−2) = −4x−8x
x = -5
500
The sum of three consecutive numbers is 108. What is the smallest of the three numbers?