a+b+c=305
b ___
a ___ ___ ___
c ___ -15
Rezolvare:
5p-15=305
5p=305+15
5p=320
p=320:5=64 => b=64 => a=64×3=192 => c=64-15=49
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a+b+c=305
b ___
a ___ ___ ___
c ___ -15
Rezolvare:
5p-15=305
5p=305+15
5p=320
p=320:5=64 => b=64 => a=64×3=192 => c=64-15=49