Question

solve the system of equations by the substitution method
x + y = 12
y = -5x

Answer 1

x+y=12
y=-5x
>
x-5x=12
-4x=12
x=-3
>
y-3=12
y=15

Answer 2

Since the second equation is arleady solved for y, just insert what y is equal to into the first equation:
x + y = 12
x - 5x = 12
Then solve for x. Then insert what x equals into either the first or second equation, and solve for y.

Answer 3

the question has a multiple answer thing and those are
A) the solution is ( ) in ordered pair
B) there are infantly many solutions
C0 there is no solution

Answer 4

so if y = 15 would the ordered pair be (15,-3)

Answer 5

(x,y) so, (-3,15)