Question

Use the mthod of substitution to solv the linear equation.
2x-y=2
9x-4y=11

Answer 1

2x-y=2......1
9x-4y=1.....2
from(1);
2x-2=y
using the value of y in eq(2)
9x-4(2x-2)=1
9x-8x+4=1
x+3=0
x=-3........3
using value of xin eq(1)
y=2(-3)-2
y=-6-2
y=-8

Answer 2

ok i am going to see how u did this

Answer 3

ok so could we do another probelm togther and i try to solve and u correct me?

Answer 4

hello

Answer 5

ok.....

Answer 6

but i might need your help to start it off

Answer 7

same method for linear equation 6a=5-b
6a=three-b

Answer 8

my number three key is out...

Answer 9

6a=5-b.......1
6a=3-b........2
from(1)
5-6a=b
using it in two
6a=3-5+6a
this question had no answer......

Answer 10

i think i hav to set it up this way 5-6a=b

Answer 11

my computer had frozee sorry for rplying late

Answer 12

yeah...i have done it for you....

Answer 13

no problem...

Answer 14

ok so this problem is no solution

Answer 15

wouldnt this problem be just a=6

Answer 16

yeah......bcz variables cut down..

Answer 17

because 5-three=1

Answer 18

divide by 6=6

Answer 19

oh ok i see i am going to graph this one and no solution. Thank you

Answer 20

welcome....

Answer 21

in which class you are???

Answer 22

algebra

Answer 23

intermediate

Answer 24

what about u

Answer 25

i am in university.......software engineering

Answer 26

oh ok well im in healthscience

Answer 27

well i am having a probelm with this particular homework assignment

Answer 28

i dont remeber how to solve some of these problems