Question

X + y = 30

2x + 4y = 84

Substitution
or
Elimination
I

Answer 1

(X,Y)(18,12)

Explanation:

x + y = 30

2x + 4y = 84

___________

2x+2y=60

2x+4y=84

_________

-2y=-24/-2y

y=12

2x+4(12)=84

2x+48=84

2x=84-48

2x/2=36/2

X=18