Question

Doar punctul B !Ofer coroana !

Answer 1

Răspuns:

(144:x-4):2-222:74=1

(144:x-4):2-222:74=1,x≠0

(144/x -4):2-222:74=1

144-4x/x •1/2 -3=1

2(72-2x)/x •1/2 -3=1

72-2x/x -3=1

72-2x/x=1+3

72-2x/x=4

72-2x=4x

-2x=4x-72

-2x-4x= -72

-6x= -72

x=12,x≠0

x=12