Question

What is the solution of this linear system?

3x + 5y = -1
2x − 5y = 16

Answer 1

if 3x + 5y = -1
what does 5y = ?

Answer 2

3x + 5y = -1
2x-5y=16

Answer 3

using only the first equation:
if:
\[3x + 5y = -1\]
what does 5y = ?

Answer 4

yo, you there bro?

Answer 5

-1?

Answer 6

no, you would subtract 3x from both sides to get 5y by itself
so if 3x + 5y = -1
5y = -1 -3x

Answer 7

lol i thought you were asking me what the number was

Answer 8

ahh, ok
now sub that value for 5y into your 2nd equation:
so 2x - 5y = 16 ( and 5y = -1 -3x... therefore)
2x - (-1 -3x) = 16

Answer 9

can you solve that equation by adding and subtracting the values to get x = something?

Answer 10

i need to get the x vaule which is -3x and y vaule

Answer 11

which is either 2 or -2

Answer 12

yep, and from this equation :
2x - (-1 -3x) = 16
you can get the value for x
and if you have the value for x, you can sub it into either equation and it will give you the value for y

Answer 13

give it a shot
2x - (-1 -3x) = 16
2x --1 --3x = 16
2x +1 +3x = 16
5x + 1 = 16
so what does x equal?

Answer 14

wait i thought x was -3

Answer 15

how did u get x = -3 man?

Answer 16

is it 2?

Answer 17

you cant just guess, its maths, you have to solve it
so: 5x + 1 = 16
5x = 15
so what is x equal to?

Answer 18

3

Answer 19

okay i found y =-2

Answer 20

booyah, so if you put x = 3 into the first equation you had:
3x + 5y = -1
so 3 times 3 + 5y = -1
9 + 5y = -1
so what does y equal?

Answer 21

sweet

Answer 22

thanks bro

Answer 23

props

Answer 24

all good