Slope fields and Euler’s method practice question 1

Try to put each equation in the linear form. What is allowed to multiply $y$ or $\dfrac{dy}{dt}$ there, and what is not?

A linear equation can be written $\alpha\dfrac{dy}{dt} + \beta y + \gamma = 0$, where $\alpha$, $\beta$, $\gamma$ may depend on $t$ but not on $y$. Look for a power of $y$, $y$ inside another function, or $y$ times $\dfrac{dy}{dt}$.