Question

-2x+3y=-3
-2x - 5y=-75

Answer 1

Once again, multiply the second equation by -1 to get 2x+5y=75.

Add the two equations up to get 8y=72. y=9.

then substitute 9 into the first equation.

-2x+3(9)=-3
-2x+27=-3
-2x=-30
x=15.

Answer 2

put what you want to solve for

Answer 3

for x and y

Answer 4

I just did it for you.

Answer 5

any questions?

Answer 6

-2(15)+3y=-3
3y=27
y=9

Answer 7

so y=72

Answer 8

no. y=9.

Answer 9

look at my first post, 2nd line.

Answer 10

and x =15?

Answer 11

yes it does.

Answer 12

THANKSSSSSSSSSSSSSSSS!!!!!!!!!!! you were right

Answer 13

lol :)

Answer 14

=))))))))))))))

Answer 15

can you help me with another?

Answer 16

sure.

Answer 17

-x - 4y=-37
-2x -5y=-53

Answer 18

ok, so you would multiply the first equation by -2. and get 2x+8y=74.
Do you get this?

Answer 19

using that equation, add it to the other one to get 3y=21. Therefore, y=7.

Substitute 7 for y in the first equation.
-x-4(7)=-37.
-x-28=-37
-x=9
x=-9.