Question

Solve by the substitution method
3m+n=1
m-5n=11
Type the answer in an ordered pair.

Answer 1

m = 1

y= -2

Answer 2

saifoo so the ordered pair looks like this? (1,-2)

Answer 3

Yes!

Answer 4

grrrr...

Answer 5

whoa totally different answers!

Answer 6

uh oh...what is the grrr for?

Answer 7

chk yr answer, by substitutiong the values.,

Answer 8

I get cranky. ;p

You need to understand what was done and that it's correct in order to know what answer is right. So I hope you are actually working through these and if you have questions you ask.

Answer 9

If 33+16n=1, then
16n=-32 so n=-2
Then when you sub in the other equation, the other value would also change.
But Harkirat has the process correct.

Answer 10

m - 5n = 11 => m = 11 + 5n

In 3m + n = 1 substitute 11 + 5n for m to get
3(11 + 5n) + n = 1
33 + 15n + n = 1
16n = 1 - 33
n = -32/16
n = -2

now put n = -2 in m - 5n = 11
m - 5(-2) = 11
m + 10 = 11
m = 11 - 10
m = 1

Answer 11

np guyz, mistakes happen!

Answer 12

sorry Rachel, i had made an error of sign at first,
now the solution is correct n complete...

Answer 13

I have thousands of problems some are actual homework and others are exercizes. I work through them on my own first and either I am not understanding because my homework says I am wrong or I am confirming my work.

Answer 14

np Harkirat.

Answer 15

Thank you guys.

Answer 16

thx saifoo n rachel n polpak :))