OK. Here we go. Since Migo isn't sure what the question is,
I have to take my best guess.
I'll tell you two questions that I'm sure it's one of, and I'll answer
both of the questions that I made up myself.
Ordinarily I wouldn't bother with this one, but I was blinded by the
radiance of the bountiful 5 points that await me at the end.
Question #1: Solve the equation for 'x' .
Answer: You said 3x + 7y = 2
Subtract 7y from each side: 3x = -7y + 2
Divide each side by 3 : x = - 7/3 y + 2/3
==========================================
Question #2: Solve the equation for 'y' .
Answer: You said 3x + 7y = 2
Subtract 3x from each side: 7y = -3x + 2
Divide each side by 7 : y = -3/7 x + 2/7