Question

Rezolva exercitiul :
(m÷7+4)×8-12=60

Answer 1

$(m:7+4) \cdot 8-12=60 \\ (m:7+4) \cdot 8=60+12 \\ (m:7+4) \cdot 8=72 \\ m:7+4=72:8 \\ m:7+4=9 \\ m:7=9-4 \\ m:7=5 \\ m=7 \cdot 5 \\ \boxed{m=35}.$

Answer 2

(m:7+4)x8-12=60 
(m:7+4)x8= 60+12
(m:7+4)x8= 72
m:7+4= 72:8
m:7+4=9
m:7=9-4
m:7=5
m= 7x5
m= 35
Proba: (35:7+4)x8-12=60