Question

Solve the system of equations
4x + 3y = 13
y=- x + 4

Answer 1

ok which method would you like to use?

Answer 2

I totally get these backwards, could you help figure this out

Answer 3

\[4x+3(-x+4)=13\] the x has a negative right and lets use substitution here its easier

Answer 4

all you do if take y=- x + 4 and plug it in place of the 1st equation

Answer 5

now solve from there

Answer 6

do I add or subtract from the 13

Answer 7

no first distribut 3 so
3 x -x = ?
3 x4 =?

Answer 8

7 x - 13

Answer 9

no....we are MULTIPLYING
3 x -x = ?
3 x4 =?

Answer 10

ok then 12 x

Answer 11

the x was for multiplication not 12x just 12 whats 3 times -x ?

Answer 12

\[4x+3(-x+4)=13\] distribute
\[4x-3x+12=13\] combine like terms
\[1x=1\] divide x=1

Answer 13

-12 right divided by 12 = 1

Answer 14

I already did that part for you now we have to substitute for X on the 2nd equation
\[y=-(1)+4\] substitute 1 in place of X
\[y=-1+4\]
\[y=3\]

Answer 15

so your final answer is?

Answer 16

(3, 4) would this be the answer?

Answer 17

where did u get 4 from?

Answer 18

i already did all the work now u make the coordinates i tell u what equals what
x= ?
y= ?

Answer 19

(3,12)

Answer 20

Look back at my work

Answer 21

if x=1 y=3 what is your coordinate?

Answer 22

-3,-16 ? I am confused

Answer 23

I gave u the values there right there \[X=1~~~Y=3\]

Answer 24

Now make the coordinates

Answer 25

ok, now I see it would be (1,3)

Answer 26

\(\huge\color{RED}{CONGRATS!!!!!}\)

Answer 27

Thanks so much, now i am going to try to figure this out online. I will let you know how I did in a bit.

Answer 28

your welcome =)

Answer 29

I have to go somewhere soon, so thanks again pooja

Answer 30

hahah your welcome :) also welcome to openstudy! :D

Answer 31

thanks, there is so much more to learn, I forgot how to do all of these problems :)

Answer 32

hehe tag me anytime :)

Answer 33

@wopwop if anythings you now know that pooja is always ready for action and the rest of us owls :) welcome :D