To solve this equation for m, first isolate the 3m term by subtracting 7 from both sides of the equation:
7 + 3m - 7 = 28 - 7
3m = 21
Next, divide both sides by 3:
3m/3 = 21/3
m = 7
Therefore, the solution to the equation 7 + 3m = 28 is m = 7.
7+3m=28
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