01:46 duration 1 minute 46 seconds
Prealgebra 5.8.7
Panama Canal
02:28 duration 2 minutes 28 seconds
Prealgebra 5.8.10
Miles Per Gallon
02:04 duration 2 minutes 4 seconds
Prealgebra 5.7.6
Solve for x: 5(x + 1) = 3x + 12
01:42 duration 1 minute 42 seconds
Prealgebra 5.7.5
Solve for t: 11 - 3t = 7t + 8
02:30 duration 2 minutes 30 seconds
Prealgebra 5.7.4
Solve for x: 10x - 7 = 2x + 13
02:49 duration 2 minutes 49 seconds
Prealgebra 5.7.3
Solve for x: 4.2x + 3.7 = -26.12
02:00 duration 2 minutes 0 seconds
Prealgebra 5.2.9
-3.1 - 7.8
01:52 duration 1 minute 52 seconds
Prealgebra 5.2.10
-7.9 - (-8.5)
Prealgebra 4.8.4
1 - 2/3 * (1/3 - 1/2)
03:18 duration 3 minutes 18 seconds
Prealgebra 4.6.14
-6 4/5 - (-9 3/10)
03:22 duration 3 minutes 22 seconds
Prealgebra 4.4.1
5x - 2 = 43
02:25 duration 2 minutes 25 seconds
Prealgebra 2.8.2
23 = t + 7
02:03 duration 2 minutes 3 seconds
Prealgebra 2.6.7
(-x) ^2
01:40 duration 1 minute 40 seconds
Prealgebra 2.6.4
Evaluate -a / b
00:58 duration 58 seconds
Prealgebra 2.6.3
Evaluate a / b
02:32 duration 2 minutes 32 seconds
Prealgebra 2.6.12
-4 ( x - 2y + 3z)