Solving and checking for extraneous solutions

Question

10 over x + 6 over x = 20

Answer 1

Combine terms with like denominators (10/x and 6/x)

10/x + 6/x = 16/x

So... 16/x = 20

Multiply both sides by x

16 = 20x

Divide both sides by 20 to get x by itself.

0.8 = x

Other forms of this answer could be:

16/20

8/10

4/5