Question

HELP PLEASE


Solve the system using the addition method.

5x - 2y = 3
2x - y = 0

What is the y-value in the solution?

Answer 1

try multiplying the 2nd equation by -2
then adding the 2 equations together

Answer 2

ok lets see

Answer 3

-2?

Answer 4

-2(2x - y) = -2(0)

what do you get?

Answer 5

-4x + 2y = 0

Answer 6

ok now add that to the first equation

Answer 7

1x = 0

Answer 8

er,
3+0 =?

Answer 9

3

Answer 10

so if you add up the converted 2nd equation to the first, you should get
1x =3

because the 2y cancel out

Answer 11

yeah i see 2 cancels ....just didnt get that .......ohh i see what i did okok

Answer 12

ok,
since you have x

can you solve for y?

Answer 13

should i plug it in 5x -2y = 3

Answer 14

its 6 (:

Answer 15

you could plug it into the other equation
you should get the same answer

Answer 16

it a good way of checking, cause if you didnt get hte same answer, then one of your numbers is wrong

Answer 17

i checked