Answer:
You didn't attach an image so I will assume that AC and BD are opposite sides. In a parallelogram, opposite sides are congruent which means:
2y + 7 = 3y - 4
-y = -11
y = 11
To find the answer, you just plug 2x in place of x (even though 2x already has an x). It would look something like this: f(2x)= (2x)^3 = 2x*2x*2x= 8x^3

The Correct choice is <u>Substition method</u> , as we can directly substitute the value of y from first equation to the second equation.
(7,5) is the solution to this system.
Answer:
y= 4x+8
Step-by-step explanation:
you multiply 4 by X which equals 4X
the multiply the four by the two which equals eight