Asha B. answered 01/15/13
I love Biology and Science! Everyone should!
For your first question: 3X- 7 = 3 (x = 1) I'm not sure if it's a typo and the equal sign should be a minus sign.
For the second question, is that three separate questions?
For your third question: solve for y first (isolate it out)
- so subtract 2x from both sides giving you: 7y = -2x+14
- Then divide by 7, giving you: y= -2/7x + 2
- So your y-intercept is 2