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2014-09-30T15:36:35+03:00
A-b=39            ⇒ 2a=174⇔a=87⇒b=135-87=48
a+b=135   
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  • Utilizator Brainly
2014-09-30T15:37:30+03:00
A-b=39⇒a=b+39 

a+b=39*5
a+b=195

b+39+b=195
2b+39=195
2b=156
b=78

a=b+39
a=78+39
a=117

2 5 2