Question

x+18=2y, y=2x-9 (find with determinant camer's rule)

Answer 1

Answer:

Answer:x=12 & y=15

Step-by-step explanation:

Answer 2

Answer:

x+18/2=y y=2x-9

x/2+9=y y=2x-9

x/2+9=2x-9

18=x/2+2x

18=x+4x/2

18=5x/2

5x=36