Răspuns :
a) a + b + c = 9/5 : 3
a + b + c = 3/5
b) a + b + c = 5/3 * 3
a + b + c = 5
a + b + c = 3/5
b) a + b + c = 5/3 * 3
a + b + c = 5
x+y+z=[tex] \frac{9}{5} [/tex]
ma=(x+y+z):3=[tex] \frac{9}{5} [/tex]:3=[tex] \frac{3}{5} [/tex]
ma=[tex] \frac{5}{3} [/tex]
ma=(x+y+z):3
------------------------------
(x+y+z):3=[tex] \frac{5}{3} [/tex]
x+y+z=[tex] \frac{5}{3} *3[/tex]=5
x+y+z=5
ma=(x+y+z):3=[tex] \frac{9}{5} [/tex]:3=[tex] \frac{3}{5} [/tex]
ma=[tex] \frac{5}{3} [/tex]
ma=(x+y+z):3
------------------------------
(x+y+z):3=[tex] \frac{5}{3} [/tex]
x+y+z=[tex] \frac{5}{3} *3[/tex]=5
x+y+z=5