Răspuns :

Ioana202022id

Răspuns:

2a+2b+2c=300+500+400=1200:2=600= a+b+c

c=600-300=300

b=600-400=200

a=600-500=100 sau 300-200 =100

Sper ca am fost de ajutor :)

Bianca200792id

a+b=300

b+c=500 +

a+c=400

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2a+2b+2c=400+500+300

2a+2b+2c=900+300

2a+2b+2c=1200 împartit la 2

a+b+c=600

a+b+c=600

a+b=300 ->c=600-300=300

b=500-300=200

a=400-300=100

Sper ca te-am ajutat

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