Question

Solve: -2x+5y=-20

Answer 1

You can't solve this equation because there are only one equation, while there are two variables.

Answer 2

what to do

Answer 3

What if it was a linear equation?

Answer 4

Are we solving for X or Y?

Answer 5

for Y

Answer 6

Ok, hold on

Answer 7

ok

Answer 8

http://www.mathway.com/answer.aspx?p=calg?p=-2x+5ySMB01-20?p=1?p=?p=?p=?p=?p=0?p=?p=0?p=?p=?p=SolveSMB15theSMB15EquationSMB15forSMB15y This is what I use to help me with my math.

Answer 9

Thanks!!!!!!!

Answer 10

@EvonHowell Please don't give out answers without explanation (even externally available, although technically it required a login). For me I only give them Wolfram|Alpha after I have explained how you would get the solution.

@sheaneather If you're trying to find y, Add both sides by 2x and then divide both sides by 5.

Answer 11

oops my bad I'm sorry won't happen again...

Answer 12

thanks~!