I think the answer is A if I’m wrong I’m sorry ;-;
Answer:
C
Step-by-step explanation:

10×8 is that what you mean
Answer:

Step-by-step explanation:
First transpose 3x
you are having 3x+4y=7
by transposing you will get
4y=-3x+7
divide by 4 throughout by making y subject of the formula you will find your equation as y=mx+c.