Prove that any four-digit number is divisible by 2 when the last digit in the number is divisible by 2.
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When the last number of any number is divisible by two it is called an even number. An even number will always be divisible by a number like 2.

Step-by-step explanation:

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10