Twice the sum of x and y decreased by 21

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asked Oct 4, 2017 63.2k views

1 Answer

Harshay Buradkar · Answer 1 · 2017-10-10T09:15:22+0000

Answer: 2((x+y)-21)

Calculation/Explanation:

Twice the sum of x and y decreased by 21 means that you must add x and y first before decreasing by 21. The last step is to double the whole equation that we just performed.

Twice the sum of x and y decreased by 21

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