pls help me to solved this equation

Question

1. 6y=x+18
2y-x=6,
2. 4x=3y=13
2x-4y=1
3. y=3x-12
2/3x=2/3-1/6y pls help me now. this equation is Systems of Linear Equations Solved Algebraically.

Answer 1

1. x=18-6y
2y-6=x

therefore, 18-6y = 2y-6
18+6=2y+6y
24=8y
y=3

x= 18-6y
18-(6x3)
x=0

Do the rest by your own.