Twelve people entered a room. Three more than two-thirds of these people then left. How many people remain
in the room ?
Solve the following system of equations, algebraically, by substitution.
y + 2x = 3
x = 3y + 5
Six less than three times a number is four more than twice the number. Find the number.
A rain barrel contained 4 gallons of water.just before a thunderstorm. It rained steadily for 8 hours, filling the barrel at a rate of 6 gallons per day. How many gallons of water did the barrel have after the thunderstorm?
A.) 4 gallons
B.) 6 gallons
C.) 7 gallons
D.) 9 gallons