Question

Oblicz i sprawdź : 2(x-4)=10

Answer 1

2(x-4) = 10

2x - 8 = 10

2x = 10 + 8

2x = 18/2

x = 9

 

odp. x=9.

 

spr.

2(x-4) = 10

2(9-4) = 10

18 - 8 = 10

10 = 10

Answer 2

2(x-4)=10

2x - 8= 10

2x= 10 +8

2x= 18/ :2

x= 9

 

sprawdzenie:

2(9-4)=10

18-8=10

10=10