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23-09-2019
Mathematics

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the sum of twice a number and 4 is equal to the sum of the number and 8

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23-09-2019

Answer:

4

Step-by-step explanation:

Variable: X = Unknown Number

2x + 4 = x + 8

2x - x = 8 - 4

x = 4

Check:

2(4) + 4 = 4 + 8

8 + 4 = 12

12 = 12

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