Respuesta :

solution :-

3m+2(m+2)=20-(2m-5)

=> 3m + (2m + 4) = 20 - (2m -5)

=> 5m + 4 = 20 -2m +5

=> 5m + 2m = 25 -4

=>  7m = 21

=> m = 3 answer

sania8
15m-10=20
+10 +10
15m=30
m=2

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