Solve by elimination 5x-15y=10 3x-5y=-6

Question

asked Feb 14, 2020 203k views

1 Answer

Serial Lazer · Answer 1 · 2020-02-21T18:04:30+0000

Multiply bottom equation by -3 to add and eliminate y’s.

So...

5x-15y=10
+-9x+15y=18

You get -4x=28 so x=-7

Plug in to get y
5(-7)-15y=10
-35-15y=10
-15y=45
So y=-3

Check in other equation
3(-7)-5(-3)=
-21+15=-6

So x= -7 and y= -3

Solve by elimination 5x-15y=10 3x-5y=-6

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

No related questions found

Categories

Other Questions