Question

La o ferma de pasari erau 895 curci, cocosi si gaini. Daca cocosi si curci sunt 528, iar cocosi si gaini sunt 603,afla cite pasari de fiecare fel erau la ferma. va rog frumos si schema.

Answer 1

curci+cocosi+gaini=895
cu+co=528
co+g=603
cu+603=895
cu=895-603
cu=292
528+g=895
g=895-528
g=367
co+367=603
co=603-367
co=236
292(cu)+236(co)+367(g)=895

Answer 2

Notez cocosi cu b, curcile cu a si gaini cu c
a+b+c=895
b+a=528->a=528-b
b+c=603->c=603-b
528-b+b+603-b=895
1131-b=895
-b=895-1131
-b= −236 |(-1)
b=236
a=528-236
a=292
c=603-236
c=367