Răspuns :
2(a - b) = 116
a - b = 58
2(a + b) = 208
a + b = 104
Adunam relatiile
a - b + a + b = 58 + 104
2a = 162
a = 81
b = 23
2(a-b)=116/:2 => a-b=58=>a=58+b
2a+2b=208
2(a+b)=208/: 2 =>a+b104=>58+b+b=104
58+2b=104/-58
2b=46/:2
b=23
a=58+23
a= 81
2(a - b) = 116
a - b = 58
2(a + b) = 208
a + b = 104
Adunam relatiile
a - b + a + b = 58 + 104
2a = 162
a = 81
b = 23
2(a-b)=116/:2 => a-b=58=>a=58+b
2a+2b=208
2(a+b)=208/: 2 =>a+b104=>58+b+b=104
58+2b=104/-58
2b=46/:2
b=23
a=58+23
a= 81