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6m = 25 + 5
6m = 30
m = 30 : 6
m = 5
b. 9 - 6m = 3
-6m = 3 - 9
-6m = -6
m = -6 : -6
m = 1
6m=25+5
6m=30
m=30:6
m=5
9-6m=3
-6m=3-9
-6m=-6
-m=-1
m=1