Could someone explain to me how to do this!!

x=16, y=39

Step-by-step explanation:

to solve y=2x+7

Substitute 2x+7 for y in y=3x−9

y=3x−9

( solve this like a normal problem)  

2x+7=3x−9 (Add -3x to both sides)

-x+7=-9  (Add -7 to both sides)

-x=-16 (Divide both sides by -1)

x=16

Now that you found x you can substitute this in the other problem.

y=3(16)-9

y=39

Hopefully this helped!

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

you first to choose the points and then move from then as the slope you have