SOLUTION: Twice the difference of a number and five equals 9.

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Question 975345: Twice the difference of a number and five equals 9.
Answer by farohw(175) About Me  (Show Source):
You can put this solution on YOUR website!

Twice is 2

The difference of a number and five is x - 5

Equals 9 is of course, = 9

Translation: 2(x - 5) = 9

If you have to solve:

2(x - 5) = 9

2x - 10 = 9

2x = 9 + 10

2x = 19

then divide both sides by 2 to isolate x,

x = 19/2

Best,
Farohw