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= Daca 3×7 +29= a ,b×2+8=46,a+b=?​

Răspuns :

Răspuns:

21+29=a

a=50

2b+8=46 /-8

2b=38 /:2

b=18

a+b= 50+18= 68

Răspuns:

a=21+29=50

b×2=46-8

b×2=38

b=38:2=19

a+b=50+19=69