(X+Y+Z):7=41 r=6 (1); X+15=Y(2); Y+32=Z(3);in rel (1) apl.TIR, X+Y+Z=7*41+6=293
X+Y+Z=293 (4); din(2) X=Y-15; inlocuim in (4); Y-15+Y+Y+32=293; 3Y=293-32+15=276; 3Y=276:3;Y=92; inlocuim (2), X+15=92, X=92-15=77, inlocuim in (3),
92+32=Z, Z=124; Y=92;X=77. Proba: (77+92+124):7=41; 293:7=41 r=6