What is the solution to the system of equations? y=-3x + 6
y= 9
O (-21,9)
O (9,-21)
0 (-1,9)
O (9.-1)

(-1,9)

Step-by-step explanation:

y=-3x + 6

y= 9

Set the two equations equal

-3x + 6 = 9

Subtract 6 from each side

-3x+6-6 = 9-6

-3x =3

Divide by -3

-3x/-3 = 3/-3

x =-1

y = 9

(-1,9)

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get