Răspunsuri

2014-05-18T18:58:00+03:00
A+b=195    a+75=b+40 ⇒ b=a+35    a+a+35=195, a=80, b=115.

2014-05-18T19:16:17+03:00
A + b = 195
a + 75 = b + 40
a + 35 = b

a + b = 195
a + a + 35 = 195
2a + 35 = 195
2a = 160
a = 80
b = 195 - a
b = 195 - 80
b = 115