Asystem of equations is shown below. y = 5x + 10 y = 10x – 5 what is the value of x + y? a. 25 b. 28 c. 72 d. 75

B. 28

Step-by-step explanation:

We are given the following system of equations

We can substitute in one of the equations for y. This will give us an equation that we can solve for x.

Next we can substitute in our value for x in order to find the y value.

Now we can check with the other equation to see if our x and y values are correct

Now we are certain that x=3 and y=25

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.