Respuesta :

jcherry99

Answer:

Step-by-step explanation:

Given

2x + 9 - x + 3

What's equivalent

Solution

2x - x + 9 + 3             The terms have been rearranged. Combine

x + 12

Test.

x = 5

2(5) + 9 - 5 + 3

10 + 9 - 5 + 3

19 - 5 + 3

14 + 3

17

x + 12

5 + 12 = 17

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