Question

24. Alfabet... matematic":
a) (9 x 9 - 6x6 - a) + (13 +28:4) = 5 x 10+ 3;
b) (99-b-3x 8) + 2 * 6:2 = 8 x 2 + 5 x 10;
c) (6 x 4:3+ c): 7 = 16:4;
d) (9 x 4:6 xd-5 * 5 = 45:9;
părți e) (e-5x6+ 10 5):5+4 x 8 = 42;
f) (96 - 3x4-5 8) +f-9 x 7 = 13;
D(23 - 6 x 3+g) + 3 x 9- 8x3:6 = 34;
?
(3 x 9 +9:h) + 5 x 4:2-(12 - 4x 2) = 6 x 6;
i
j)
k
1)
n
n​

Answer 1

Răspuns:

a) (9 x 9 - 6x6 - a) + (13 +28:4) = 5 x 10+ 3;

(81-36-q)+(13+7)=50+3

(45-a)+20=53

(45-a)=53-20

45-a=33

a=45-33

a=12

(99-b-3x 8) + 2 * 6:2 = 8 x 2 + 5 x 10

(99-b-24)+12:2=16+50

(99-b-24)+6=66

(99-b-24)=66-6

99-b-24=60

99-b=60+24

99-b=84

b=99-84

b=15

(6 x 4:3+ c): 7 = 16:4;

(24:3+c):7=4

(8+c)=4x7

8+c=28

c=28-8

c=20

(9 x 4:6 xd)-5 * 5 = 45:9

(36:6xd)-25=5

(6xd)=5+25

6xd=30

d=30:6

d=5

(e-5x6+ 10 5):5+4 x 8 = 42

(e-30+?????