Solve: 2w + 15 = 3w - 9
w = -24/5
w = 24
w = -24
w = -6
Solve:10 - 4b = 2(b + 1)
b = -3
b = -⅔
b = 9
b = 7
When solving 14k = 168 2 + 7k, the answer is k = 12.
Solve: 10d / 2 = 3d + 18
d = 9
d = -9
d = 9/4
d = 9/7
When solving -8y - 24 = - 3y + 11, the answer is y = 7.
22 - 8x = 6(3 + 2x)
x = ⅕
x = 9
x = 5/2
x = 4
Sally & Louis are racing on scooters. Sally can go at 15 meters per minute, and Louis is going 18 meters per minute. Sally starts a little bit ahead at 15m in front of the starting line and Louis starts right on the starting line. After how many minutes will Sally & Louis be side by side? Let x stand for how many minutes.
18x = 15x
18x = 15x + 15
18x + 15 = 15x + 15
18x -15 = 15x + 15
You decide to start using public transportation to get around. There are two different methods to pay. One method is to pay $2.00 per ride. The other method is to buy a monthly pass for $25 and then be charged just $0.50 per ride. After how many rides are these two options the same amount of money? Let x stand for the number of rides on the bus.
$2.00 * 25 = $0.50x
$2.00x = $0.50x - $25
$2.00x = 25x + .50x
$2.00x = $0.50x + 25
Which operation is an inverse operation to multiplication?
addition
subtraction
squaring
division
