Question

Folosind egalitatile:x*a=15;x-b=23;x*c=37si m+n+r=93 calculati: x*(a+b)+x(b+c)+9*m+9*n+9*r

Answer 1

Mi se pare ca ai o gresheala la conditie! x-b=23, dar ar trebui sa fie x*b=23!
Cum e corect!???