Identify the solution(s) of the system of equations 6x+4y=2 and y=5-3x 9/1/2013 | Debra from Detroit, MI | 2 Answers | 0 Votes Mark favorite Subscribe Comment
Plug in y = 5-3x into the first equation, 6x+4(5-3x) = 2 Solve for x, x = (20-2)/6 = 3 y = 5-3x = 5-9 = -4 Answer: (3, -4) 9/1/2013 | Robert J. Comment
Hey Debra -- as another angle, it's often a helpful relief to "cut in half" ... 3x+2y=1 ... since 3x=5-y, then 5-y+2y= 5+y =1 ... leaving y= -4 and 3x=9 or x=3 ... Best wishes, ma'am :) 9/1/2013 | Brad M. Comment