Question

3x + 5y=3
x+2y=0

solve

Answer 1

Elimination or substitution?

Answer 2

elimination

Answer 3

wait no the question says substitution

Answer 4

Ok, subtract 2y on both sides in the second equation

Answer 5

x= -2y + 0

Answer 6

So x=-2y
Substitute this value of x into the first equation, so...

3(-2y)+5y=3
And u should be able to solve for y

Answer 7

-y = 3?

Answer 8

Yes. And multiply both sides by -1 so y=-3.

Plug this value of y into one of the original equation to solve for x

Answer 9

the second one or first

Answer 10

Doesn't matter. Whichever one i find easier

Answer 11

You*

Answer 12

-6y + x = 0 ?

Answer 13

so x = -6y

Answer 14

Are u plugging it into the second equation ?

Answer 15

yea

Answer 16

Should be

x+2(-3)=0
And now solve for x

Answer 17

x=6

Answer 18

so (6,-3)

Answer 19

Correct