va rog eu nu mi-am dat seama cum sa o fac
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a+b+c=336
a-x=11 => a=11+x
b-x=12 => b=12+x
c-x=13 =>c=13+x
11+x+12+x+13+x=336
3x+36=336
3x=300
x=100
a=11+100=111
b=12+100=112
c=13+100=113
a+b+c=336
a-x=11
a=11+x
b-x=12
b=12+x
c-x=13
c=13+x
11+x+12+x+13+x=336
36+3x=336
3x=336-36=300
x=300÷3=100
a=11+x=11+100=111
b=12+x=12+100=112
c=13+x=13+100=113.