Question

4x+7y=21

Answer 1

?\(\large ?\)\(\huge ?\)

Answer 2

sorry-not the whole problem the second line of that is y=-7x+4

Answer 3

substitution, elimination simultaneous equation this isnt hard

Answer 4

please walk me through it

Answer 5

I would use substitution if that is your second equation

Answer 6

can you show me how to do
4x+7y=21
y=-7x+4

Answer 7

@abb0t \(\tiny?
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Answer 8

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Answer 9

@wdh you can substitute the second equation into the first :)

Answer 10

i really don't know how

Answer 11

\[4x+7y=21\\4x+7(-7x+4)=21\\4x-49x+28=21\]

Answer 12

u shud be able to do dis now

Answer 13

thank you-but it still isn't right

Answer 14

where did u find dis ques

Answer 15

college algebra

Answer 16

internet or book

Answer 17

on web assign

Answer 18

maybe I am just getting the next steps wrong

Answer 19

can you screenshot

Answer 20

sorry-I don't know what that is

Answer 21

sorry gtg

Answer 22

how do you solve an equation by the substitution method?

Answer 23

Nice one kc!

Answer 24

@PixieDust1 that time I really got to go, not saying that to escape

Answer 25

No, I meant good job explaining :D

Answer 26

lolz thx :D