SOLUTION: evaluate the following 6/7w-3 when w=21 I got a answer of 6/126 simplified to 21.

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Question 1126915: evaluate the following
6/7w-3 when w=21

I got a answer of 6/126 simplified to 21.
Found 2 solutions by josgarithmetic, math_helper:
Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website!
What do you have as expression?
6/(7w-3)
?

6/(7w)-3
?

(6/7)w-3
?

(6/7)(w-3)
?

Answer by math_helper(2461) (Show Source):
You can put this solution on YOUR website!
Taking what you posted at face value, that is 6/7w-3, and setting w=21 you should get (6/7)*21 - 3 = 18 - 3 =

Now, it is possible you intended something else, but 6/7w-3 = (6/7)*w - 3 so if you did, you must use parenthesis to indicate that. Remember PEMDAS.
[ Also 6/126 is not 21, it is 1/21 ]