Question 674890
A+B=90
3x-7 + 11x-1 = 90
3x + 11x - 7 - 1 = 90
14x - 8 = 90
14x = 90 + 8
14x = 98
x = 7
...
m(A) = 3(7) - 7 = 21-7 = 14
m(B) = 11(7) - 1 = 77 - 1 = 76
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