Solve by using the elimination method.

9x-y=72
x+4y=45

1 answer

9x-y=72
x+4y=45
get either x to be same value or y... in this case i chose y
4(9x-y=72)
x+4y=45
so
36x-4y=288
x+4y=45
so
37x=333
x= 9
then plug 9 into one of the equation to get y.
Similar Questions
    1. answers icon 1 answer
    1. answers icon 4 answers
  1. Solve by eliminnation methods2x-4y=5 2x-4y=6 solve the system by elimination method 5x+2y= -13 7x-3y=17 Solve x+6<-7 or x+6>4
    1. answers icon 1 answer
  2. elimination method really confuses me.solve by elimination method 5r -3s = 17 3r + 5s =17 A. solution is ______ (ordered pair,
    1. answers icon 4 answers
more similar questions