Question

solve using elimination: 5x+y=0 15x-3y=9

Answer 1

sorry wrong question

Answer 2

What the?

Answer 3

STUPID COMPUTER!!!!!

Answer 4

Why do you come here posting non-sense?

Answer 5

My computer keeps on posting what I said on the last problem I did

Answer 6

hero do you know implicit differentiation?

Answer 7

A little bit, but I already see what you're working on. I don't really feel like dealing with that right now.

Answer 8

ok. There is just noone else on who knows calculus

Answer 9

Talk to James. He eats Calculus for breakfast.

Answer 10

sooooooo ummm about this problem.....

Answer 11

oops

Answer 12

Sorry for interrupting

Answer 13

Write both equations in terms of y, then set y = y and solve for x.

Answer 14

explain if u don't mind

Answer 15

Is it big enough?

Answer 16

By the way, that's wrong

Answer 17

so x = -48/32?

Answer 18

\[\huge\matrix{\text{5x+y=0}\\\text{15x-3y=9}}\]
multiply top row by 3 and subtract
\[\huge\matrix{\text{15x+3y=0}\\\text{15x-3y=9}\\6y=-9\Rightarrow y=-\frac{3}{2}}\]
\[\huge 5x-\frac{3}{2}=0\Rightarrow x = \frac{3}{10}\]