Răspuns :
a-b=3
a>b
2a+2b= 134
2(a+b)=134 => a+b= 67
a+b=67
a-b=3 => a=b+3
a=67-b
67-b=b+3
67-3=2b
64=2b => b= 32. Deci inseamna ca a este : a+32=67 => a=67-32=35 .
a+a+3+a+a+3=134
4a+6=134
4a=134-6=128
a=128:4=32
mama are 32 ani
tata are 32+3=35 ani
4a+6=134
4a=134-6=128
a=128:4=32
mama are 32 ani
tata are 32+3=35 ani