Question

Ima just send the pic

Answer 1

r = -27/16

Explanation:

We have:

8r - 3/2 = -15

To find r, we have to isolate the term which contains this variable. Then, we can use the least common multiple:

`\begin{gathered} 8r-(3)/(2)=-15 \\ 8r=-15+(3)/(2) \\ 8r=(-15\cdot2+3)/(2) \\ 8r=(-30+3)/(2) \\ 8r=-(27)/(2) \\ \text{Dividing both sides by 8, we have:} \\ (8r)/(8)=-(27)/(2\cdot8) \\ r=-(27)/(16) \end{gathered}`

So,

r = -27/16