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15×(100+m)=100×(20+m)
cat e m?​


Răspuns :

15*(100+m)=100*(20+m)

15*100+15m=100*20+100m

1500+15m=2000+100m

1500-2000=100m-15m

85m=-500

m=-500/85

m=-100/17

Răspuns:

15×(100+m)=100×(20+m)

1500+15m=2000+100m

15m-100m=2000-1500

-85m=500

m= - 500/85

m= -100/17