Question

Solve the system of equations. y - 4x =0 and 3x + 6y=9

Answer 1

y-4x =0

3x+6y=9

making y subject in equation 1

y= 4x

put y into eqn 2

3x+6(4x) = 9

3x+24x = 9

27x=9

divide both sides by 27

x= 9/27

`x = (1)/(3)`

y=4x

y= 4(1/3)

`y = (4)/(3)`