Question

Help plz i was sick on the day we learned about it
:(
Solve each system of equations.
2x+y=11
y=x-1

Answer 1

ok, so 2x+y=11 and y-x=-1

Answer 2

I would say use substitution. Plug in x-1 to y in the first equation.

Answer 3

now 3x=11-(-1)=12

Answer 4

and x=4

Answer 5

so y=3

Answer 6

I am a little confused can you you that together for me? i can solve but i need to know what i am solving and i am over all confused. sorry i am trying :(

Answer 7

basically if trying to cancel the y in the two equations

Answer 8

so that the result is a single equation with only x in it

Answer 9

ok...

Answer 10

to do that, I subtract the left side of second euqatoon from the left side of the first

Answer 11

it has to equal to the result of subtracting the right side of the second from right side of the first

Answer 12

now the left of new euqation is 2x, agree?

Answer 13

right of new queation is 11-x+1

Answer 14

rearaange gives you 3x=12

Answer 15

haha, owls are cool c: especially blue owls!

Answer 16

@steve816 is the coolest fella I've ever met!

Answer 17

yes but i still do not see exactly how that is shown.. like 2(x+y)=11?

Answer 18

thats not right is it :( i am so confused im sorry i am trying but i still dont get it

Answer 19

what is 2x+y-y?

Answer 20

2x? Sorrry if i take forever to respond its my computer is not working right

Answer 21

good, now how about 11-(x-1)?

Answer 22

12x? i do not think i did that right...

Answer 23

ok, so you should try again

Answer 24

where exactly did you strcuk?

Answer 25

um never mind
i figured it out is the answer (4,3)

Answer 26

great

Answer 27

Yay

Answer 28

thanks