Answer: n=3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
9n−10n=−3
9n+−10n=−3
(9n+−10n)=−3(Combine Like Terms)
−n=−3
Step 2: Divide both sides by -1.
-n/1 = -3/-1
n = 3