Question

3. Află x + y + z, ştiind că:
x=9x 6-81:9 + (32 – 12:2);
y= 10 x 10 x 10:10 + (45 – 42:6);
z=70 - (16 + 16:8).​

Answer 1

Răspuns:

261

Explicație pas cu pas:

x=9×6-81:9+(32-12:2)

x=9×6-81:9+(32-6)

x=9×6-81:9+26

x=54-9+26

x=45+26

x=71

y=10×10×10:10+(45-42:6)

y=10×10×10:10+(45-7)

y=10×10×10:10+38

y=100×10:10+38

y=1 000:10+38

y=100+38

y=138

z=70-(16+16:8)

z=70-(16+2)

z=70-18

z=52

Aflăm:

a+y+z=?

71+138+52=209+52=261