Solve for both systems 10x+5y=35 and 6x + 7y = 33

Asked by AnneS2 12 years ago 7/22/2013 5:10 AM

Last updated by anonymous 12 years ago 7/23/2013 8:24 PM

Answered by CherieS 12 years ago 7/23/2013 8:24 PM

10x+5y=35

10x-10x+5y=35-10x

5y=35-10x

5y/5=35-10x/5

y=7-2x

6x + 7y = 33

6x + 7(7-2x)= 33

6x + 7(7) (7)(-2x)= 33

6x+49-14x=33

49-8x=33

49-8x-49=33-49

-8x=-16

-8x/-8=-16/-8

x=2

y=7-2x

y=7-2(2)

y=7-4=3