Solve the equation for y: 4x + 3y = -12.

Question

anonymous · Answer

Would you like some help?

annjewell1998 · Answer

Yes please.

anonymous · Answer

Okay, do you know what we are subtracting?

annjewell1998 · Answer

3y?

anonymous · Answer

No. Not quite. We are solving for y. Therefore, we subtract 4x from both sides.

annjewell1998 · Answer

Can I get back on later, i have to go to my next class, i'll be on during my lunch though.

anonymous · Answer

No problem. Pm me when you need me. :)

anonymous · Answer

you need help

anonymous · Answer

Should i write the steps how to solve it

calculusxy · Answer

$$4x + 3y = -12 \rightarrow 3y = -12 - 4x \rightarrow \frac{ 3y }{ 3 } = \frac{ -12 - 4x }{ 3 } \rightarrow y = -4 - \frac{ 4x }{ 3 }$$

calculusxy · Answer

That's my work, I am not sure if it's correct :\

anonymous · Answer

right

calculusxy · Answer

@Abdullahbasra007 I am right?

annjewell1998 · Answer

Well the answer choices were 
 a y = -12 - 4/3 x
 b y = -4 - 4/3 x
 c y = -12 + 4x
 d y = -4 + 4x

annjewell1998 · Answer

4x + 3y = -12
-4x               -4x
3y= -12-4x
this is as far as i get and i don't know where to go next.

calculusxy · Answer

So the answer that I had can also be written as: 
$$\color \green{y = -4 - \frac{ 4 }{ 3 }x}$$

annjewell1998 · Answer

Thank you, but how did you get that? can you explain the steps please?

calculusxy · Answer

Well what I did was isolate y. That's why I moved 4x to the other side and then divided that right side all by 3.

annjewell1998 · Answer

Oh okay, thank you.