Răspuns:
Explicație pas cu pas:
a)
x=14 cm 8 mm - 8 cm 9mm
x=13 cm 18 mm - 8cm 9mm
x=6 cm 9 mm
b)
x= 6 cm 7 mm + 14 cm 8mm
x= 20 cm 15 mm
x= 21 cm 5 mm
c)
x+2/3x = 12 cm 5mm
5/3x =36/3 cm 15/3 mm
5x = 36 cm 15 mm
5x= 35 cm 25 mm
x= 7 cm 5 mm
d)
x= 1/3x + 11cm 2 mm
x - 1/3x = 11 cm 2mm
2/3 x = 33/3 cm 6/3 mm
2x = 33 cm 6 mm
2x = 32 cm 16 mm
x= 16 cm 8 mm
Succes !!
