Question

PLEASE HELP PLEASE!does anyone know how find a solution to a system of equations such as: 2y=-3x+y=17
3x+y=25

Answer 1

2y=-3x+y=17 is this right?

Answer 2

YES

Answer 3

Ok

Answer 4

we will Re-arrange it

Answer 5

OK

Answer 6

-3x+y-2y=17
3x+y=25

Answer 7

Now we will add the two equations

Answer 8

ok and how do u do tht?

Answer 9

-3x-y=17
3x+y=25

Answer 10

i am confused now

Answer 11

+3x and -3x cancel
+y and -y cancel

Answer 12

ahhhh ok

Answer 13

0=42(WHICH IS WRONG)
so your system is no valid

Answer 14

isnt it 8,1?

Answer 15

how, show me what you did

Answer 16

ok so i got -3x-y=25 rearranging the problem and then i subtracted and plugged

Answer 17

how did you get -3x-y=25
when original equation is 3x+y=25

Answer 18

can i give you a different problem because i wanted to check if 2y=-3+6
and-9-6y=18 ok so rearranged to 2y=-3y+6 and 6y=18-6y does that sound good so far?

Answer 19

Your orginial Rearrange
2y=-3+6 2y=-3y+6
-9-6y=18 6y=18-6y

Answer 20

ok then wht do u do after tht and i think for the rearranged bottom one should it be 9x instead of 9y cause i typed the wrong data sorry

Answer 21

and the 3 for the top should have an x instead of a y

Answer 22

im just confused on what to do AFTER rearranging the equations

Answer 23

If 2y=-3x+y=17 is the correct problem, then you can extract 3 equations from that :

2y=-3x+y
-3x+y=17
2y=17

The 1st equation simplifies to y=-3x. Substituting that into the 2nd equation gives us -3x+-3x=17 which simplies to -6x=17. Solving that for x gives us x=-17/6. From the 3rd equation 2y=17 we get that y=17/2. So we have as the solution

x=-17/6 and y=17/2