Study Barn - What is the simplified result of following the steps above in order?(1) add 5y to 2x(2) multiply the sum by 3(3) subtract x + y from the product

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What is the simplified result of following the steps above in order?
(1) add 5y to 2x
(2) multiply the sum by 3
(3) subtract x + y from the product

A. 5x + 14y

B. 5x + 16y

C. 5x + 5y

D. 6x + 4y

E. 3x + 12y

Step one 2x + 5y
Step two 3(2x + 5y) = 6x + 15y
Step three (6x + 15y) - (x +y) = 6x + 15y - x - y (Notice that last minus sign!)
This gives 5x + 14y

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Taken: 79 times

Added: 10/29/2008

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Taggged: Math, SAT

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