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Leila1231
a fost răspuns

Dacă :

a+b =1032
b+c=433
a+ c=1401
atunci : 2a-2b+2c=

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Răspuns :

a+b=1032 2a-2b+2c
a+c=1401 2ooo-62+802=1136
2a+b+c=1032+1401
2a+433=2433
2a=2433_433
2a=2000
a=1000

b+c=433
a+c=1401
a+b+2c=433+1401
1032+2c=1834
2c=802
c=401

a+b=1032
1000+b=1032
b=32

2a-2b+2c
2000-64+802=1134