Răspunsuri

2014-11-11T18:37:19+02:00
A+b+c=166         a-b=3*166     c*5=b


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2014-11-11T19:27:36+02:00
A+b+c=166
b:3+b+b+5=166
b/3+2b=166-5
b/3+6b/3=161
7b/3=161
b=(161x3):7
b=483:7
b=69
69:3+69+69+5=166