Question

Help me solve this using the substitution method? -3x + 8 = -1 & 4x - y = 11

Answer 1

please explain this to me step by step

Answer 2

i can help

Answer 3

Can you?

Answer 4

yes but the ques is not clear

Answer 5

it is -3x+8=-1
4x - y = 11
and i need to solve this using the substitution method

Answer 6

the 1st eqn is it -3+8=-1 or -3+8y=-1

Answer 7

-3x+8y=-1

Answer 8

sorry.

Answer 9

ok i can help

Answer 10

okay :)

Answer 11

does y = 4x - 11?

Answer 12

make y the subject in the 1st eqn
y=4x-11
then substitute it into the 2nd eqn
-3x-(4x-11)=11
then x=3
substitute ur answer into any of the eqns to get
y=1

Answer 13

oh okay! I did it :) thank you. can you please help me on this one as well?
12x - 2y = 0
-7x + y = -1

Answer 14

yes but u have to be my fun and a medal

Answer 15

of course.

Answer 16

10x alot

Answer 17

np..can u help me?

Answer 18

yes i can

Answer 19

ok:)

Answer 20

make y the subject in eqn 1
y=6x
substitute y=6x into eqn 2
-7x+6x=-1
solve for x
x=1
and then solve for y by substituting
y=1 into any of the eqns
u will get y=6

Answer 21

okay, thank you. you're a great help.. I'm just wondering on this equation..
3x + 12y = 24
x - 5y = 17

will x = -1?

Answer 22

no rather y=-1

Answer 23

oh ok, thank you so much :)

Answer 24

u are welcome,
do have any more questions

Answer 25

no, that's it. thank you!

Answer 26

then lets have a chat

Answer 27

sure, about what?

Answer 28

about each other country,age,college etc

Answer 29

are you a girl or guy?

Answer 30

& you can message me if u want..