Use addition to solve the linear system of equations. Include all of your work in your final answer. 3x - y = 6
y = x - 4​

Solve the inequality. graph the solution. 6q< −18 the solution is .

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.