Question

6x+y=9.7
4x+2y=9.8 , What is the value of x? please help me :( @-------College Al…

Answer 1

multiply the top by -2 and add the equations together to start with

Answer 2

-2(6x+y=9.7)
4x+2y=9.8

-12x-2y=9.7(-2)
4x+2y=9.8
---------------
-8x + 0 = 9.7(-2) + 9.8

x = (9.7(-2) + 9.8)/-8

Answer 3

once you get rid of the y part, x is at your mercy ....

Answer 4

ok, do i solve for the x = (9.7(-2) + 9.8)/-8

Answer 5

you should solve it as you go thru it, but I aint got a calculator handy to do the stuff with.

so yes, finish off the math to get an answer :)

Answer 6

get the value of y from first equation!
y=9.7-6x
put the value of y in terms of x in the 2nd equation!
4x+2(9.7-6x)=9.8
solving would get the value of x! and further putting the value of x in equ 1 would yeild y

Answer 7

1.2