Question

( / --inseamna "pe" ,nu de inmultit ok?) VA ROG AJUTATIMA :)
7/8y=1intreg 1/4
5/24y= -1untreg 7/48
9/44y=2intreg 5/11
7/12y=1intreg 1/4
- 7/26y= -29/13
y:(-0,3)=5/21
y*1/3=3/4:1/2
y:2/7= - 2intreg 1/3
y:(-2intreg 2/3)= 3intreg 1/8
y:(-1,8)=6,5
y:(-5,3)=2,5
1/5y-2/3y= -7/25

Answer 1

7/8y=1 1/4  ⇒ 7/8 y=5/4 ⇒ 28y=40  ⇒y=40/28=10/7
5/24y= -1 7/48 ⇒5/24 y =-55/48 ⇒y=-11/2
9/44y=2 5/11 ⇒9/44 y = 27/11⇒ y=12
7/12y=1 1/4 ⇒7/12 y= 5/4 ⇒ y=15/7
- 7/26y= -29/13 ⇒7/26 y = 29/13 ⇒ y=58/7
y:(-0,3)=5/21 ⇒10/3 y = 5/21 ⇒ y=1/14
y*1/3=3/4:1/2 ⇒ y/3 =3/4x2/1 ⇒ y/3 =3/2  ⇒ y=9/2
y:2/7= - 2 1/3⇒ 7/2 y =-7/3  ⇒y=-2/3
y:(-2  2/3)= 3 1/8 ⇒ - 3/8 y = 25/8 ⇒y=25/3
y:(-1,8)=6,5 ⇒ -10/18 y = 65/10  ⇒ -5/9 y = 13/2 ⇒y=-9x13/5x2=117/10 =-11,7
y:(-5,3)=2,5 ⇒ -10/53 y=25/10 ⇒ -10/53 y=5/2 ⇒ y=-5x53/10x2=-53/4 
1/5y-2/3y= -7/25 ⇒ (3y-10y)/15=-7/25 ⇒ -7/15 y =-7/25  ⇒ y=7x15/7x25=3/5