Question

-otions ........ | 8. Find the value of y in the following system: 1 3 x+y=0 X -- y=4 2

Answer 1

Simplify the equation x + 1/2 y = 0 to obtain the value of x.

`x=-(1)/(2)y`

Substitute -1/2 y for x in equation x - 3/2y = 4 to obtain the value of y.

`\begin{gathered} -(1)/(2)y-(3)/(2)y=4 \\ -(4)/(2)y=4 \\ y=-2 \end{gathered}`

So value of y for the system of equation is -2.