Răspuns :

Rianamihai09id

Răspuns:

1)x÷5+13=23

x:5=23-13

x:5=10

x=5×10

x=10

2)231:11=x+7

x+7=21

x=21-7

x=14

3)1:x=x

1:1=1==>x=1;

4)x:8=5

x=8×5

x=40

5)36:x+11=15

36:x=15-11

x=36:4

x=9

6)2•x:8=5

2x=5•8

2x=40

x=20

7)x:13=14

x=14×13

x=182

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