Răspuns :
a+b=45
a-x=14=>a=14+x
b-x=15=>b=15+x
inlocuim => 14+x+15+x=45 | -29
2x=16=>x=8 => a= 22
b=23
Răspuns:
a+b=45
a-c=14
a-c=15
14+15=29
45-29=16
16÷2=8
a=14+8
a=22
b=15+8
b=23
Verificare: a+b=45
22+23=45
a+b=45
a-x=14=>a=14+x
b-x=15=>b=15+x
inlocuim => 14+x+15+x=45 | -29
2x=16=>x=8 => a= 22
b=23
Răspuns:
a+b=45
a-c=14
a-c=15
14+15=29
45-29=16
16÷2=8
a=14+8
a=22
b=15+8
b=23
Verificare: a+b=45
22+23=45