The slope would be 3/5 because you add 3X to 30 to cancel it out and get the Y by itself. Then you have to divide by 5 to completely isolate the Y. Since 3 is not divisible by 5 you are left with 3/5 as your slope.
(70-23.9+69)/6=Answer
this is because you add them together and divide them by 6. dividing it makes it 1/6th
hope this helps!
X=1/3y+17/3 This is for the variable if that is what you were asking for...
The reciprocal is the fraction flipped. so the reciprocal of 1/2 is 2/1. It's used when dividing fractions to make it multiplication, so you use the reciprocal for the second fraction.