(8*(3m-2)-13)/4=(5*(12-3m)+28)/4
(24m-29)/4=(88-15m)/4
24m-29=88-15m
24m+15m=88+29
39m=117
m=117/39
m=3
(24m-29)/4=(88-15m)/4
24m-29=88-15m
24m+15m=88+29
39m=117
m=117/39
m=3
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