Question

85. Ştiind că:
a = (9 +8:2-9:3): 2
b = 7 - 15: (8-6: 2)
C = (8 + 16): 3 + 3 (18 - 4x 3).
calculează: 5 xa + 3 xb-C=
8 x a + 6 xb- 2 XC​

Answer 1

a = (9 +8:2-9:3): 2

a=5

b = 7 - 15: (8-6: 2)

b=4

c = (8 + 16): 3 + 3 (18 - 4x 3).

c=26

5 x a + 3 x b-c=

=5 x 5 + 4 x 3 - 26

=11

8 x a + 6 x b- 2 x c=

=8 x 5 + 6 x 4 - 2 x 26=

=12