Question

Calculati urgent dai coaroana si 90 de puncte + 25 multumesc !!!

Answer 1

4.
a).x+2/3=7/3
x=7/3-2/3
x=5/3
b).3/7+x=4/7
x=4/7-3/7
x=1/7
c).3/7-2/35=x
15/35-2/35=x
x=13/35
d).2 întregi 1/5+x=3 întregi  1/7
11/5+x=22/7
x=22/7-11/5
x=33/35
e).7 întregi 1/3-x =3 întregi 1/7
22/3-x=22/7
x=22/3-22/7
x=88/21
f).5/12=26/15-x-19/60
5/12=17/12-x
x=17/12-5/12
x=1
g).x-8/3=1/24
x=1/24+8/3
x=65/24