Question

need help! use substitution method 2x+6y=4
-3x+y=24...answer must be an ordered pair...Thanks!

Answer 1

y=24+3x

Answer 2

x=2-3y

-3(2-3y)=24
-6+9y=24
9y=20
y=20/9


x=2-3(20/9}
x=-14/3

Answer 3

nevermind i missed a y

Answer 4

y=24+3x

2x+6(24+3x)=4
2x+144+18x=4
20x=-140
x=-7

y=24+3(-7)
y=3

Answer 5

2 6 = 4
-3 1 = 24


1 -3 = 24
0 10 = -70

1 -3 = 24
0 1 = -7


1 0 = 3
0 1 = -7
y x

maybe

Answer 6

i spose i coulda forgone a step and just reduced the top first :)

Answer 7

2x + 6y = 4 (*)
-3x + y = 24 (**)

y = 24 + 3x, from (**) above
= 3*(8 + x) (***)
2x + 6*3*(8 + x) = 4, substituting (***) into (*) above
2x + 18*8 + 18x = 4
20x + 144 = 4
20x = 4 - 144 = -140
20x/20 = -140/20
x = -7*20/20 = -7 (****)

y = 24 + 3*(-7) substituting (****) into (**) above
= 24 - 21 = 3

Ans. (-7,3)