Question

40-a=60,a pliss bantu

Answer 1

40 - a = 60
-a = 60 - 40
-a = 20
a = -20

Answer 2

Dik :
40 - a = 60
Dit :
nilai a

Jawabannya :
40 - a = 60
-a = 60 - 40
-a = 20
 a = 20
       -1
 a = - 20

Semoga membantu ^_^