Question

or
Solve using substitution.

–7x + 9y = 12
x = –3

Answer 1

I'm going to help you sense no one else is :/

Answer 2

Substitute x=-3 into the equation so then you rewrite it as 7-(-3)+9y=12

Answer 3

now you simplify that and it becomes 21+9y=12

Answer 4

make the y go by itself so 9y=12-21 9y=-9

Answer 5

then divide both sides of the equation by 9 y= -9/9 y=-1

Answer 6

so the final part should be x=-3 and y=-1 or (-3,-1)

Answer 7

hope that helpd you (:

Answer 8

thankss

Answer 9

np (:

Answer 10

can u help me with some more if not its ok.

Answer 11

yes I don't mind I'm not doing anything right now lol

Answer 12

just send and I'll help (:

Answer 13

x = –3
–10x + 2y = 16

Answer 14

what do you want me to do with this solve it?

Answer 15

yes its solve using substitution.

Answer 16

okay do you remember what to do this is like really simple?

Answer 17

so I'm gonna give you the break down for it okay?

Answer 18

x= like any number you basically plug that into the equation and its connect to the first number and put in parenthesis like this -10x(-3)

Answer 19

and so forth the rest of the equation

Answer 20

next you simply the equation you know add what needs to be added and subtracted and multiplied and all that?

Answer 21

ok

Answer 22

which would be 30+2y=16

Answer 23

then you have to get y by its lonesome because y gets bullied

Answer 24

then you dived both sides by which the both sides for this equation are y=-14/2 y= -7

Answer 25

and then the final answer to them is x=-3 and y= -7 or (-3,-7)

Answer 26

do you understand it a lil better?

Answer 27

yuh

Answer 28

okay good

Answer 29

glad I could help (:

Answer 30

is this algebra 1 or pre algebra?

Answer 31

this easy asl no way u cant do this

Answer 32

exactly

Answer 33

real.

Answer 34

bro flexing knowing algerbra one while he in college

Answer 35

rizz?

Answer 36

real!!!!!!