Question

How do I solve y-5=-8/7(x-5) I get lost when multiplying -8/7 by 5???

Answer 1

By 5 or by -5?

Answer 2

-8/7(x-5) means (-8/7)*(x-5)?

Answer 3

I think so.

Answer 4

Anyway, the op has gone...

Answer 5

i am so confused by this problem, Im trying to write the equation in slope intercept form

Answer 6

"I get lost when multiplying -8/7 by 5???"

Still this part?

Answer 7

right so I get -8/7x but then do i multiply -8/7 (5/1) and get -40/7?

Answer 8

If you multiply a minus number by a minus number you get a plus, right?

So your working is right but the sign is wrong.

Answer 9

ok by i worked it right, so it would be 40/7

Answer 10

Yes, why don't u show me what u have so far?

Answer 11

so I get y-5=-8/7x+40/7

Answer 12

Yep, now we're in business, just a bit of rearranging and we are done.

Answer 13

ok so i know i need to add five to both sides
what is the best way to do that?

Answer 14

Can I just ask, did the question say "solve" or just "simplify" or something else?

Because you can't actually solve this equation only arrange it in some form or other.

Answer 15

it says to write the equation in slope intercept form y=mx+b
and then write in in Ax+By=C where A B Care integers and A>0

Answer 16

Right, back to your adding 5.

After we have done that we get y on the left side, which is what we want, right?

And on the right side we have -8/7x+40/7 +5.

So we have y = -8/7x+40/7 +5 and what I would like you to do now is multiply everything (both sides) by 7.

Answer 17

7y=-8x+75?

Answer 18

thank you so much for the help, I figured it out thanks to you!!!

Answer 19

Anytime..

Answer 20

how do i change the question status to answered?