-7(1-4m)=13(2m-3) 求m

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-7(1-4m)=13(2m-3) 求m
-7(1-4m)=13(2m-3) 求m

-7(1-4m)=13(2m-3) 求m
-7(1-4m)=13(2m-3)
-7+28m=26m-39
28m-26m=-39+7
2m=-32
m=-16

-7+28m=26m-39
2m=-32
m=-16

—16

-7(1-4m)=13(2m-3)
-7+28m=26m-39
2m=-39+7
2m=-32
m=-16

-7+28m=26m-39
2m=-32
m=-16