Answer:
-2
Explanation:
To solve this equation for y, we need to isolate the y-term on one side of the equation. We can do this by adding 3.2 to both sides of the equation, which gives us the following:
8.4 - 3.2 + 3.2 = -20 + 3.2
This simplifies to: 8.4 = -16.8
Then, we can divide both sides of the equation by 8.4 to isolate the y-term, which gives us:
1 = -16.8 / 8.4
This simplifies to: 1 = -2
Therefore, the value of y that satisfies the equation is -2.