Question

Afla valoarea lui 35:ax6=42| 28:ax7=49| ax8:2=24| ax7:2=0| 38:a=7 rest 3 |86:a= 9 rest 5| a:6 = 8 rest 5| a:3=9 rest 1

Answer 1

35 : a × 6 = 42

35 : a = 42 : 6

35 : a = 7

a = 35 : 7

a = 5

_______

28 : a × 7 = 49

28 : a = 49 : 7

28 : a = 7

a = 28 : 7

a = 4

________

a × 8 : 2 = 24

a × 8 = 24 × 2

a × 8 = 48

a = 48 : 8

a = 6

________

a × 7 : 2 = 0

a × 7 = 0 × 2

a = 0 : 7

a = 0

Verific: 0 × 7 : 2 = 0 : 2 = 0

________________

38 : a = 7 rest 3

a = ( 38 - 3) : 7 → teorema impartirii cu rest

a = 35 : 7

a = 5 → impartitorul

_______

86 : a = 9 rest 5

a = ( 86 - 5 ) : 9

a = 81 : 9

a = 9 → impartitorul

____________

a : 6 = 8 rest 5

a = 8 × 6 + 5

a = 48 + 5

a = 53 → deimpartitul

Verific: 53 : 6 = 8 rest 5

_______________

a : 3 = 9 rest 1

a = 9 × 3 + 1

a = 27 + 1

a = 28 → deimpartitul

V: 28 : 3 = 9 rest 1

Answer 2

35:a= 42:6 =7

35:a= 7 A= 35:7= 5

b)
= ax4= 24 A= 24:4= 6

C)
ax7 = 0x2= 0 a= 0

D)
= ax7+3= 38
=> ax7= 38-3= 35
A= 35:7= 5

E)
= ax9+5= 86
Ax9= 86-5= 81
A= 81:9= 9

F)
A= 6x8+5= 48+5= 53

G)
=a= 9x3+1= 27+1= 7
A=28