Question

Równania od 31 w dół prosze o pomoc :D

Answer 1

5-2[y+3]=8

5-2y-6=8
-2y=8+6-5
-2y=9  /:-2
  y= -4,5

 

-1+4[2z-1]=3
-1+8z-4=3
8z=3+4+1
8z=8  /:8
z=1

 

2y+3[4-y]=y
2y+12-y=y
2y-y-y=-12
0=-12

 

6[3y+2]-5[4y+6]= -6
18y+12-20y-30= -6
18y-20y= -6-12+30
 -2y=12  /:-2
y= -6

 

 

-7[2z-3]-5[4-3z]=1
-14z+21-20+15z=1
-14z+15z=1-21+20
 z=0

 

0=-8[x+3]+4[2x-6]
0=-8x+24+8x-24
8x-8x=24-24
0x=0
x=0

 

3=-3[5y+2]-6[3y-7]
3= -15y-6-18y+42
15y+18y=42-6-3
33y=33  /:33
y=1

 

 

2[7x-3]=5-4[6-4x]
14x-6=5-24+16x
14x-16x=5-24+6
-2x= -13  /:-2
 x=6,5

 

2[9y-1]-3[2y+1]+1=5[4y+3]
18y-2-6y-3+1=20y+15
18y-6y-20y=15+2+3-1
-8y=19  /:-8
  y= -2,37

 

-3-5[3x-2]= -8
-3-15x+10= -8
-15x= -8+3-10
-15x= -15  /:-15
  x=1

 

4z-3[3z-5]=2z+1
4z-9z+15=2z+1
4z-9z-2z=1-15
-7z= -14  /:-7
  z=2

 

8[2x-1]+3[4-5x]=0
16x-8+12-15x=0
16x-15x=8-12
  1x= -4

 

-4[x+2]=8-2[2x-5]
-4x-8=8-4x+10
-4x+4x=8+10+8
0x=26
x=0

 

x-4+3[3-2x]=6[x-1]
x-4+9-6x=6x-6
x-6x-6x= -6+4-9
-11x= -11   /:-11
x=1

 

x-3=2[2-3x]
x-3=4-6x
x+6x=4+3
7x=7   /:7
x=1

 

 

mam nadzieje za pomoglam i zasluzylam na naj