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(63÷a)+(27÷9)=12,(4+8÷8)+c=30

Răspuns :

Crys157724

(63:a)+(27:9)=12

63:a+3=12

63:a=12-3

63:a=9

a=63:9

a=7

______________

(4+8:8)+c=30

(4+1)+c=30

5+c=30

c=30-5

c=25
( 63 : a ) + ( 27 : 9 ) = 12

( 63 : a ) + 3 = 12

63 : a = 12 - 3

63 : a = 9

a = 63 : 9

a = 7

( 4 + 8 : 8 ) + c = 30

( 4 + 1 ) + c = 30

5 + c = 30

c = 30 - 5

c = 25

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