Question

(6 x 4 - i x 3) + 9 x 4 = 3 x 10 + 3 x 10
96 - (8 x 4 + a x 3) = 5 x 6 +19
96 - (9 x 5 - 9 x i) = 5 x 6 + 57
96 - (5 x 5 + a x 6 -40) x 2 = 9 x 10
30 de puncte si coroana

Answer 1

1.<br />(6x4-ix3)+9x4=3x10+3x10<br />(24-ix3)+36=30+30<br /><br />notam (24-ix3) cu a =><br />a+36=60=><br />a=60-36=><br />a=24<br /><br />inlocuim pe a si-l aflam pe i:<br />=>(24-ix3)=24<br />=>ix3=24-24=><br />ix3=0=><br />i=0<br /><br />facem verificarea :<br />(24-ix3)+36=30+30=><br />(24-0x3)+36=60=><br />24-0+36=60=><br />60=60<br /><br />ai inteles metoda de calcul? faci la fel, restul sunt doar calcule<br />

Answer 2

Notam paranteza cu y
y + 9 x 4 = 3 x 10 + 3 x 10
y + 36 = 60
y = 24
6 x 4 - 3i = 24
3i = 24 - 24
3i = 0
i = 0
V: (6 x 4 - 0 x 3) +9 x 4 = 3 x10 + 3 x 10
24 - 0 + 36 = 30 + 30
60 = 60

La fel procedam cu parantezele (le notam cu y)
96 - y = 30 + 19
y = 96 - 49
y = 47
8 x 4 + a x 3 = 47
32 + 3a = 47
3a = 47 - 32
3a = 15
a = 5
Verificarea o faci tu

96 - y = 30 + 57
y = 96 - 87
y= 9
9 x 5 - 9 i = 9
45 - 9i = 9
9i = 45 - 9
9i = 36
i = 4

 
96 - 2y = 90
2y = 96 - 90
2y = 6
y = 3
5 x 5  + a x 6 - 40 = 3
25 + 6a - 40 = 3
6a = 3 + 40 - 25
6a = 18
a = 3
  V: 96 - 3 x 2 = 9 x 10
96 - 6 = 90
90 = 90
Multa bafta/