Question

Can anyone help me with the elimination method?

Answer 1

Sure! Let's say we have 2 equations:
3x-y=5
x+y=3
Line them up and you see that we have -y and +y on top of one another. Now let's add 3x-y=5 and x+y=3. The y's cancel out!!
That leaves us with 4x=8. From there x=2.
Now substitute the x value, which is 2 back into one of the original equations!
2+y=3....y =1
So,
x=2 and y=1

Answer 2

Okay! I see I am going to work on this problem- 2m-n=5
2m+n=3

I'll try it and you can see if I got the right answers!

Answer 3

ok. Give it a shot

Answer 4

Remember! The goal of the elimination method is to eliminate 1 variable to solve the equations!

Answer 5

so I got (2, 1 1/4)

Answer 6

I dont think the 1 1/4 part is right.

Answer 7

to check your answer substitute x and y values that you got back into the equations if you get both side equal then that is your answer
if both sides are not equal then ur answer is wrong

Answer 8

Thanks :)

Answer 9

so whats your answer ???

Answer 10

I graphed them on the computer and 2 was right but 1 1/4 is supposed to be -1

Answer 11

yeah right if you replace m and n in first equation by 2 and -1 u get both equal sides

bot h side equal your answer is right
and u have to replace into second equation u gonna get both side equal