Question

Afla numarul necunoscut: (4327-x)-
3217=609 500-(x+138)+59=70 (78-x)+34=2030-45 Afla numerele a b si c a+b+c=6259 a+b=3 C=a+1243 ajutatima.

Answer 1

$4327-x=609+3217 \\ 4327-x=3826 \\ x=4327-3826 \\ x=501 \\ ----------- \\ 500-(x+138)=70-59 \\ 500-(x+138)=11 \\ x+138=500-11 \\ x+138=489 \\ x=489-138=351 \\ ----------- \\ (78-x)+34=1985 \\ \\ 78-x=1985-34 \\ 78-x=1951 \\ x=78-1951=-1873$