Question

Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution?

y = -x + 21
y = -2x + 30

A. (8, 12)
B. (9, 11)
C. (9, 12)
D. (8, 11)

Answer 1

Would it be B?

Answer 2

@misty1212 or @acxbox22

Answer 3

replace x and y by their values (x ,y)
if you get both side equal then that is ur answer

Answer 4

since both equations are equal to y we can set them equal to one another
-x+21=-2x+30
x=9
now sub 9 intoi any equation and get y

Answer 5

bec you have to graph the lines
so graph both equations and see where both lines intersect
that point is ur solution

Answer 6

when u replace b order pair x and y
into 2nd equation
if you solve right side what you get
both side equal ??