A variable needs to be eliminated to solve the system of equations below. Choose the correct first step -4x-3y=-33
22x+3y=-21

An appliance salesman sets a goal to sell an average of 6 appliances per day for the first two weeks of his new job. the dot plot shows the number he sold each day during the first 13 days. what is the minimum number of appliances he must sell on the 14th day in order to reach his goal? a) 5 b) 6 c) 7 d) 8

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Solve 3x-18=2y and 5x-6y=6 by elimination show work