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a fost răspuns

a=75 si b+c=32,calculati:
a) a+b+c,
b) 2a+b+c,
c) 3a+2b+2c

Răspuns :

a)75+32=107
b)75+75+32=75+107=182
c)75+75+75+64=289
a) 75+32=107
b)2·75+32=150+32=182
c) dam factor comun intre 2b+2c si o sa fie 3a+2b+2c= 3a+ 2(b+c)= 3·75+2·32= 150+64=214

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