Question

ajutati-ma va rog la zece. cine scrie primu dau coroana

Answer 1

a=12
a-b=7⇔12-b=7⇔b=5
a+b=17
a=-37
a-b=-25⇔-37-b=-25⇔-b=-12
a+b=-49
a=-59
a+b=23⇔-59+b=23⇔b=82
a-b=-59-82=-141
a=12
b=-17
a+b=12-17=-5
a-b=12+17=29
a=-5
a-b=25⇔-5-b=25⇔-b=-30
a+b=-5-30=-35
sper ca te-am ajutat!!!