please can we solve this problem together?

Answer:
The expressions for x is -8y.
Step-by-step explanation:
If we let the expressions equals to 0 :
[tex] \frac{x + 8y}{4} = 0[/tex]
[tex]x + 8y = 0 \times 4[/tex]
[tex]x + 8y = 0[/tex]
[tex]x = - 8y[/tex]