Question

solve by the addition method
2x+y=11
x-y=11

Answer 1

add both the equations

Answer 2

it will be 3x = 22

so x = 22/3

then put the value of x in any of the above equation to get the value of y

Answer 3

but whats the value of y??

Answer 4

13/3??

Answer 5

from equation (ii) x - y = 11

so y = x - 11

the value of x is 22/3
so the value of y will be 22/3 - 11

Answer 6

y = -11/3

Answer 7

ok thank you can u help me to solve by graphing?? only this question??
3x+4y=20
3x-2y=8

Answer 8

okay, but you need to know how to graph straight lines to solve using graphing

Answer 9

do you know how to graph straight lines???

Answer 10

yes but i just need the points thats all

Answer 11

yes, then the point where the two lines intersect is your required answer

Answer 12

yes but what are these points??

Answer 13

okay, i'll tell you from the very start. do you have graph paper right now???

Answer 14

no

Answer 15

ill make one

Answer 16

do you have to solve this specific question using graph???

Answer 17

no i only need the points the answer :(

Answer 18

yes, right, i think :P lol

Answer 19

please tell me the points!!