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Fiesta28 [93]
2 years ago
6

Twice a number plus five is same as five times the number minus sixteen , the number is ____.

Mathematics
2 answers:
madam [21]2 years ago
7 0

Answer:

7

Step-by-step explanation:

solving algebraically:

(x = the unknown number)

(our goal is to isolate x/get x by itself)

  2x + 5 = 5x - 16     {equation written out}

 -2x         -2x

        5 = 3x - 16

   + 16        + 16

      21 = 3x

    ÷3   ÷3

      7 = x

check:

(2)(7) + 5 = (5)(7) - 16

14 + 5 = 35 - 16

19 = 19

hope this helps!!

vlabodo [156]2 years ago
5 0
The answer to your question is B.
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