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Q: The sum of twice a number and 4 times the same number?

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18

666

20

2x+4y

The number is 7.

If the number is n, then twice the number is 2n and the sum of the two is n + 2n = 3n.

sum - means addition less - means subtraction twice - means multiply by 2

The question cannot be answered because it is ambiguous. Does "twice the sum of 16 and a number" mean "2*16 + x" or does it mean "2*(16 + x)"

Call your number some variable, for example, "n". Twice the number would be 2n, adding four to that you get 2n + 4, and six times all that is 6(2n + 4), which is the same as 12n + 24.

"the sum of 2" and "twice" "a number" "is" "36"2+2x=36 â–

10

4*(2x + 8) = 32

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