Răspuns :
a+b=35
a+35->b-2=>a=b*3
a+b=35-2+35=33+35=68
b*3+b=b*4=68
b-2=68:4
b-2=17
b=19
a=35-19
a=16
Răspuns:
a+b=35
a+39=(b-2)×3
a=(b-2)×3-39
3b-6-39+b=35
4b=35+6+39
4b=80
b=80÷4
b=20
a=15
a+b=35
a+35->b-2=>a=b*3
a+b=35-2+35=33+35=68
b*3+b=b*4=68
b-2=68:4
b-2=17
b=19
a=35-19
a=16
Răspuns:
a+b=35
a+39=(b-2)×3
a=(b-2)×3-39
3b-6-39+b=35
4b=35+6+39
4b=80
b=80÷4
b=20
a=15