Question

y=3x - 11
Y= -3x - 2

Answer 1

Subsitution method. 

Y=3x - 11
Y= -3x - 2

-3x - 2 = 3x - 11
+3x        +3x

-2 = 6x - 11
+11       +11

6x = 9
x = 1.5

Y=3(1.5) - 11
y = 4.5 - 11
y = -6.5

Now we have our points. 

Answer: x = 1.5 and y = -6.5

Answer 2

Well, you do Equality method.


3x-11 = -3x-2
add 3x on both sides

6x-11 = -2
add 11 on both sides

6x = 9
divide 6 on both sides

x = 3/2

As you found the x value, you now need to find the y value by plugging in the x value in one of the above equations and solve for y.

y = 3x-11
y = 3(3/2) -11
y = 9/2 -11
y = -13/2

So, the answer is (3/2,-13/2) or (1.5,-6.5)

HOPE THIS HELPS!!!