I have a series of 2 questions.
Mathematics
littlelove6711
Question
I have a series of 2 questions.
1 Answer

1. User Answers liemonder
1)
I:y=3x4
II:9x3y=14
substitute y into II:
9x3*(3x4)=14
9x9x+12=14
12=14
this is obviously not equal so there is no solution, the lines are parallel
2)
I:y=4x+6
II:5xy=6
substitute y into II:
5x(4x+6)=6
5x4x6=6
x=12
substiute x into II:
5*12y=6
y=660
y=54
y=54
the solution is (12,54)