#1

this is a substitution problem

2m+n=1m-n=8

what do i do?

2m+n=1m-n=8

what do i do?

#2

skip that question and come back to it later

#3

simplify it first, then work it out.

what level math is this? algebra 1, 2? GTA? College Algebra?

what level math is this? algebra 1, 2? GTA? College Algebra?

#4

I'm gettin m as 3 and n as -5.

#5

solve for n or m and then replace that variable in the other equation.

#6

2m + n = 1

m - n = 8

6 + -5 = 1

3 + 5 = 8

m = 3

n = -5

Bam. Simple

m - n = 8

6 + -5 = 1

3 + 5 = 8

m = 3

n = -5

Bam. Simple

#7

I'm not sure its my friends problem Im in alg. 2 but I zone out in school..i mix reality with subconcious so i dont know what the fux going on

but what are the steps..spoon feed it to me so i can explain it her better

i think shes in alg 1

but what are the steps..spoon feed it to me so i can explain it her better

i think shes in alg 1

#8

did mine help explain the steps at all?

#9

did mine help explain the steps at all?

yeah thanks man

#10

np. You can basically guess and check this stuff and your fine. Do you want the logical steps or is this enough?

#11

yes please. i kind of understand but i don't want to look like a fool in front her haha

#12

I read it as (2m+n)=(1m-n)=8

is that the problem?

is that the problem?

#13

2m + n = 1

m - n = 8

n = 1 - 2m

Plug it in:

m - (1 - 2m) = 8 (because there is a negative sign behind the (1 - 2m), you change the signs inside.)

m - 1 + 2m=8

3m = 9

m = 3

Plug that in...

3 - n = 8

-n = 5

n = 5

that enough?

m - n = 8

n = 1 - 2m

Plug it in:

m - (1 - 2m) = 8 (because there is a negative sign behind the (1 - 2m), you change the signs inside.)

m - 1 + 2m=8

3m = 9

m = 3

Plug that in...

3 - n = 8

-n = 5

n = 5

that enough?

#14

yeah i guess so

i didnt see the problem

she just typed it to me

i didnt see the problem

she just typed it to me

#15

2m + n = 1

m - n = 8

n = 1 - 2m

Plug it in:

m - 1 + 2m=8

3m = 9

m = 3

Plug that in...

3 - n = 8

-n = 5

n = 5

that enough?

thanks man- she said she looked them in the back of a book

apparantely im a "smart boy " haha

hopefully shes just a friend for a few more days

#16

thanks man- she said she looked them in the back of a book

Then why did you need us lol

#17

Then why did you need us lol

i dnno

she has to explain it to the class or soemthing

show her work haha