Question

exemplu va rog frumos ​

Answer 1

Răspuns:

Explicație pas cu pas:

a) 2/3-x=1 5/6  ⇒x=2/3-1 5/6=2/3-11/6=(4-11)/6=-7/6     x=-7/6

b) 1 3/5+x=7/10  ⇒x=7/10-1 3/5=7/10-8/5=7/10-16/10=-9/10   x=-9/10

c) 2 5/6-x=3/4  ⇒x=2 5/6-3/4=17/6-3/4=34/12-9/12=25/12  x=25/12

d) 3 1/4+x=9/10 ⇒x=9/10-3 1/4=9/10-13/4=18/20-65/20=-47/20  x=-47/20

e) 9/14-x=1 1/4  ⇒x=9/14-1 1/4=9/14-5/4=18/28-35/28=-17/28  x=-17/28

f) 3 1/6+x=7/15  ⇒x=7/15-3 1/6=7/15-19/6=14/30-95/30=-81/30=-27/10  x=-27/10