Answer:
-7/15
Step-by-step explanation:
You want to isolate the d variable so you take out anything on the side of d to make d alone. To make d isolate the 15/42 has to go.
So...multiply
[tex]\frac{15}{42}[/tex]* [tex]\frac{42}{15}[/tex] right side
the answer to the equation above is 1. d is now alone, because 1*d is just d.
Since you multiplied 42/15 on the right, you've to do the same thing on the left.
[tex]\frac{42}{15}[/tex]*[tex](-\frac{1}{6})[/tex] left side
Divide the 6 by itself and also by 42. Or multiply the numerator and denominator.
The answer you get is -7/15.
