Question

Gasiti valorile literele din fiecare egalitate:
1580=225•a+5; 3328=369•y+7; 2147=429•z+2.

Answer 1

1580 = 225 x a + 5
1580 - 5 = 225 x a
1575 = 225 x a
a = 1575 : 225
a = 7

3328 = 369 x y + 7
3328 - 7 = 369 x y
3321 = 369 x y
y = 3321 : 369
y = 9

2147 = 429 x z + 2
2147 - 2 = 429 x z
2145 = 429 x z
z = 2145 : 429
z = 5