Does anyone have Algebra 2? Solve the system by substitution.
2x+y=-11
3x-4y=11

Question

Does anyone have Algebra 2? Solve the system by substitution.
2x+y=-11
3x-4y=11

dmndlife24 · Answer

give me one sec

anonymous · Answer

Okay, thank you!

rishavraj · Answer

multiply equation 1 from 3 and equation 2 from w.. and substract the two....

anonymous · Answer

are you trying to find X and Y?

rishavraj · Answer

its 2 instead of w

anonymous · Answer

Yes, x and y

anonymous · Answer

what? @rishavraj  that makes no sense.

dmndlife24 · Answer

x = -3

anonymous · Answer

lets call the formulas A ans B ok

anonymous · Answer

I was confused with what he said too. I keep getting a decimal so I know what I'm doing is wrong. And @dmndlife24  then y would be -5 correct?

dmndlife24 · Answer

y = 5

dmndlife24 · Answer

wait y = -5

anonymous · Answer

we'll start on A.
first you need to get Y alone. to do this subtract 2X
y=-11-2X
now we can place this in formula B in place for the Y

dmndlife24 · Answer

just try plugging it in back into the original equation

rishavraj · Answer

see use elimination method
1st equation is 2x + y = -11 .. multiply it with 3.. 
so it is  6x + 3y = -33  ....... (i)
2nd equation 3x - 4y = 11 ...multiply it with 2
will have 6x - 8y = 22 ...... (ii)
now just substract the two new equations ...x would be eliminated....

anonymous · Answer

Okay, I figured out where I messed up now! Thank you so much And no @rishavraj  I was supposed to use the substitution method.

anonymous · Answer

too many people.

rishavraj · Answer

@cheymariee  i am sorry I didn't see tht...sorry