Question

afla termenul necunoscut din urmatoarele relatii (7×7) +x egal cu 60 x+8 ×6egal100 x-6×7egal51 x-6×6egal18​

Answer 1

Răspuns:

(7x7)+x=60

49+x=60

x=60-49

x=11

x+8*6=100

x+48=100

x=100-48

x=52

x-6*7=51

x-42=51

x=51+42

x=93

x-6*6=18

x-36=18

x=18+36

x=54