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What is the value of m in the following equation? (If your answer is an integer, type it like this example: 25. If your answer is a fraction, type it like this example: 2/5.)

m + 15 = 3m – 9


Sagot :

take away m from both sides to get 15=2m-9 and add 9 to get 24=2m, next divide by 2 to get m=12


move the first m to the right-> 15=3m-m-9

15=2m-9

add 9 to both sides-> 15+9=2m-9+9

24=2m+0

now divide 24/2

m=12