Question

Complete the solution of the equation. Find the value of y when x equals 13.

-3x - 2y = -25

I get what to do, replace x with 13.. However -3 * 13 + -25.. Would that give me the answer? Or am I doing it wrong?

@hartnn

Answer 1

you mean - 3(13) +2y = -25
?

Answer 2

Oh lol. Sorry, now I see what I messed up on. Alright, so from there I would need to divide what 3(13) equals by 2, right?

Answer 3

`divide what 3(13) equals by `
i didn't understand this

-3(13) + 2y = -25
so,
2y = -25+3*13
got this ?

Answer 4

Yes, I got that. Cause you're trying to solve for "Y" so you put y after the =. Correct?

Answer 5

yeah all those steps to just isolate the y

Answer 6

Ok, so that'd be the answer? "2y=-25+3*13"?

Answer 7

Oh, wait.. Never mind. So to get rid of the 2 by the y, I divide by 2, on both sides?

Answer 8

yes

Answer 9

2y = 39-25 = 14
y = 14/2

Answer 10

So 7 lol. Well, thanks :D that helped A LOT! You're literally a life saver :). Thanks again. I'll probably have more, I'll tag ya in em'.

Answer 11

lol i won't get any notification :P

Answer 12

but welcome ^_^

Answer 13

Well, it turns out it was wrong? O_o

Answer 14

because i took +2y instead of -2y

Answer 15

so, y would be -7

Answer 16

Awh darn lol. Well, thanks anyways :P.

Answer 17

welcome ^_^