Question 726149
2m=n-3 MULTIPLY BY -2 & ADD.
3m=2n-9
-4m=-2n+6
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-m=-3
m=3 ans.
2*3=n-3
6=n-3
n=6+3
n=9 ans.
Proof:
3*3=2*9-9
9=18-9
9=9