Question

Solve 2a - 5d = 30 for d.

Answer 1

d = (30-2a)/-5

Answer 2

To solve this, we have to isolate the variable d.
The first thing we would do is subtract 2a, which makes the equation look like this:
\[-5d=30-2a\]
The next step is to divide the -5 from both sides. This is how it's done:
\[\frac{ -5d}{ -5 } d=\frac{ 30 }{ -5 }\frac{ -2a }{ -5 }\]
\[d=-6-\frac{ 2a }{ -5 }\]
Now the equation is solved!

Answer 3

2a-6