Question

7. Теңдеулерді шеш.
450 + a = 920 - 40
x - 340= 180 + 20
-
-
у : 6 = 63 : 7
8.b= 100 - 68​

Answer 1

Ответ:

450+a=920-40

450+a=880

a=880-450

a=430

450+430=920-40

880=880

x-340=180+20

x-340=200

x=200+340

x=540

540-340=180+20

200=200

y:6=63:7

y:6=9

y=9×6

y=54

54:6=63:7

9=9

8×b=100-68

8×b=32

b=32:8

b=4

8×4=100-68

32=32