10+3*{10+2*[10+4*(10+y*6)]} =1060 Y=?
Răspunsuri la întrebare
3*{10+2*[10+4*(10+y*6)]}=1060-10
3*{10+2*[10+4*(10+y*6)]}=1050
10+2*[10+4*(10+y*6)]=1050:3
10+2*[10+4*(10+y*6)]=350
2*[10+4*(10+y*6)]=350-10
2*[10+4*(10+y*6)]=340
10+4*(10+y*6)=340:2
10+4*(10+y*6)=170
4*(10+y*6)=170-10
4*(10+y*6)=160
10+y*6=160:4
10+y*6=40
y*6=40-10
y*6=30
y=30:6
y=5
10 + 3 × { 10 + 2 × [ 10 + 4 × ( 10 + y × 6 ) ] } = 1 060
3 × { 10 + 2 × [ 10 + 4 × ( 10 + y × 6 ) ] } = 1 060 - 10
3 × { 10 + 2 × [ 10 + 4 × ( 10 + y × 6 ) ] } = 1 050
10 + 2 × [ 10 + 4 × ( 10 + y × 6 ) ] = 1 050 : 3
10 + 2 × [ 10 + 4 × ( 10 + y × 6 ) ] = 350
2 × [ 10 + 4 × ( 10 + y × 6 ) ] = 350 - 10
2 × [ 10 + 4 × ( 10 + y × 6 ) ] = 340
10 + 4 × ( 10 + y × 6 ) = 340 : 2
10 + 4 × ( 10 + y × 6 ) = 170
4 × ( 10 + y × 6 ) = 170 - 10
4 × ( 10 + y × 6 ) = 160
10 + y × 6 = 160 : 4
10 + y × 6 = 40
y × 6 = 40 - 10
y = 30 : 6
y = 5 → numarul, aflat prin metoda mersului invers