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Answer: The value of m stands at m= 1/2
Explanation of stepwise methods:
7m + 19/2 = 13
For gaining a solution for the above expression DMAS rule is applicable,
7m + 19/2 – 19/2= 13 – (19/2)
7m = (26 – 19)/2
7m = 7/2
7m/7 = (1/7) × (7/2)
m=1/2