SOLUTION: what is the sum of 14xy,xy, and 5xy if x equals 1 and y equls 4?

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Question 9137: what is the sum of 14xy,xy, and 5xy if x equals 1 and y equls 4?
Answer by bonster(299) About Me  (Show Source):
You can put this solution on YOUR website!
1)Sum is the answer to an addition problem so set up the problem
14xy + xy + 5xy if x equals 1 and y equls 4?

2)if x=1 and y=4, substitute the numbers for each respective variable:
(14)(1)(4) +(1)(4) + (5)(1)(4)
56 + 4 + 20
60+20
=80