Question

Afla numerele a si b cunoscand urmatoarele: a) (a+b )ori 2 +103 = 329 b) Impartind numarul a la b se obtine catul 3 si restul 1 .

Answer 1

a)(a+b)*2+103=329

(a+b)*2=329-103
(a+b)*2=226

a+b=226:2
a+b=113

a:b=3 rest 1
a=3b+1

3b+1+b=113
4b+1=113
4b=113-1
4b=112

b=112:4
b=28

a=3*28+1=  84+1=85

Answer 2

(a+b)x2+103=329
(a+b)x2=329-103
(a+b)x2=226
a+b=226:2
a+b=113

a:b=3 rest 1 
a=3b+1

3b+1+b=113
4b=113-1
4b=112
b=112:4
b=28

a=3x28+1
a=85

Verificare : 85+28=113