Question

va roggg 6 si 7 dau coronitaaa

Answer 1

6.
a)x=5/3 - 1/3 => x=4/3
b)x=5/4 + 1/4 => x=6/4=3/2
c)x=1/6 - 5/6 => x=-4/6=-2/3
d)x=11/4 - 7/4 => x=4/4=1
e)x=12/5 - 14/5 => x=-2/5
f)x=15/7 - 23/7 => x=-8/7

7.
a)x=3/4 - 1/2 ; x=3/4 - 2/4 => x=1/4
b)x=7/6 + 1/3 ; x=7/6 + 2/6 => x=9/6=3/2
c)x=4/3 - 5/9 ; x=12/9 - 5/9 => x=7/9
d)x=(-5/6) - 9/2 ; x=(-5/6) - 27/6 => x=-32/6=-16/3
e)x=1/3 + 11/4 ; x=4/12 + 33/12 => x=37/12
f)x=1/4 + 16/5 ; x=5/20 + 64/20 => x=69/20