One-Step Equations
k - 6 = -21
k = -15
a = 5
3v - 2 - 7 = 3
v = 4
16 + 4r = r - 8
r = -8
After paying $9 for a fruit drink, Chelsea has $33. With how much money did she start?
x - 9 = 33
$42
120 = -10m
m = -12
x/4 - 7 = -11
x = -16
7 + 2x - 6x = 23
x = -4
4 - 7v = -5v + 4 - 2v
Maria was given $14 for washing the dog. She now has $23. How much money did she start with?
x + 14 = 23
x=$9
x/8 = 7
x = 56
-9n - 5 = -185
n = 20
126 = 6(8x - 3)
x = 3
29 - 3n = -7(n - 7)
n = 5
Willie rented a bike from DeShawn's Bikes. It cost $16 plus $6 per hour. If Willie paid $52, then he rented the bike for how many hours?
16 + 6x = 52
x=6 hours
x + 14 = -20
x = -34
8 = m/2 + 6
m = 4
6(2n + 6) + 4n = -92
n = -8
32 + 5n = 5(7 + n)
no solution
Jimmy spent half of his weekly allowance on candy. To earn more money his parents let him weed the garden for $5. What is his weekly allowance if he ended with $10.
x/2 + 5 = 10
x= $10
x + (-7) = -12
x = -5
(x + 7)/2 = 2
x = -3
4(8x + 7) + 8(x - 7) = 52
x = 2
4(x - 4) = 7(x - 1)
x = -3
Jill bought seven posters. A week later half of all her posters were lost during a move. There are now only 20 posters left. With how many did she start?
(x+7)/2 = 20
x = 33