Question

4y+19=x, 3y-x=-13 solve using substitution

Answer 1

4y+19=x

which mean :
x = 4y + 19

subtitute into 2nd equation
3y-x=-13
3y-(4y+19)=-13
3y-4y-19=-13

which y to the RHS
-19+13=y

therefore
y=-6

then substitute this value into the equation and get your x

cheers :)

Answer 2

Thank u I got two more

Answer 3

I need help with x now lol

Answer 4

oh, try to substitute the value of y just now into the 1st equation :D

Answer 5

show ur working here, i'll help u :)

Answer 6

I did that I got 4(-6)+19=x

Answer 7

then, just proceed :D

Answer 8

multiply 4 with -6

Answer 9

-18

Answer 10

nope, try again :p

Answer 11

I mean -24

Answer 12

lol, ok, now add with 19 :)

Answer 13

-43

Answer 14

add ! ><

Answer 15

seems like u're confusing negative part n positive part, ill try to draw the concept so u can understand better :D

Answer 16

Is it -5

Answer 17

remmber that any valu u add, the direction will go towards +ve side,
and minus will go to the -ve side,

so,

when u got -ve value, and be added with something, that value will get closer to 0,
and if -ve value is minus with something, it will get further from 0

Answer 18

yeah, u're doing right for -5 :D

Answer 19

Yes :)

Answer 20

Now I need elimination

Answer 21

For 3x+2=17 4x-2y=4

Answer 22

u better to open a new question cause i got class later :)

Answer 23

Ok