Answer:
Y= -4
Explanation:
According to the rules of GEMDAS, division precedes subtraction.
Substitute 20 into where X is in the equation, so it would look like:
20/5-8=Y
From here, simplify. 20/5 is 4. 4-8=-4
Here's how work would look like on my paper"
X/5-8=Y
20/5-8=Y
4-8=Y
Y=-4