Question

Solve for d.
-2 – 9d = -10d - 9

Answer 1

d = -9

Explanation:

-2 - 9d = -10d - 9 (combine liked terms)

+2 +2 (added two to each side)

-9d = -10d - 9 (combined liked terms again for d this time)

+10d +10d

1d = -9 (isolate x so divde one from each side)

d = -9