When they ask you to solve for y, they just want you to isolate it on one side of the equal sign (like how it is in a slope-intercept form equation). So to start:
2x + 3y = 12
3y = -2x + 12 <em>Subtract 2x from both sides to move it to the right.</em>
y = + 4 <em>Divide both sides by 3 to completely isolate the y value.</em>
Notice how y = + 4 is a slope-intercept form equation and is solved for y.
Therefore, the equation would be y = + 4.
<em>Hope this helps! :)</em>
Answer:
t=19188.2 y
Step-by-step explanation:
The exponential decay equation is:
(1)
But, A is 10% of A₀, it means that A=0.10A₀.
If we put it into equation (1), we will have:
(2)
Now, we just need to solve (2) for t.
I hope it helps you!