1. 

Solve for x:



Add  to both sides:







Divide both sides by .  This can be
done either of two ways:

1. Divide the whole right side by 








2. Divide each term individually by :







Both answers are correct and equivalent.

---

Solve for y:



Add  to both sides:







Divide both sides by .  This can be
done either of two ways:

1. Divide the whole right side by 







2. Divide each term individually by :



or canceling on the left simplifying the signs
on the right:





Both answers are correct and equivalent.

2. 

Same way:

 or 

 


3. 5x - 3y = 1

Same way:

 or 

 or 

Edwin