Question

următoarele rela
C + 5 x 4 = 44
4 x 9 + d = 81
u - 7 x 4 = 47
10 x 4 - z = 25
cifre. Cifra zecilo​

Answer 1

c + 5 × 4 = 44

c + 20 = 44

c = 44 - 20

c = 24

4 × 9 + d = 81

36 + d = 81

d = 81 - 36

d = 45

u - 7 × 4 = 47

u - 28 = 47

u = 47 + 28

u = 75

10 × 4 - z = 25

40 - z = 25

z = 40 - 25

z = 15