Question

Rozwiąż równania :( x+23=11

y-18=-52

2,4+a=7,1

5 2/3 = b+2 1/2

4x + 2/5 =3x

-5y= 2,6-4y

3z=17

4a = - 4/9

-1/3 b = -7

2x+1=7-x

18-7y=-2y-57

0,8z + 6=z +24

a - 4 =2/3 a - 8

6 4/5 = 1/7 b - 1/5

Pomożecie ?? bo ja tego nie umiem :(:(

Answer 1

x+23=11 |-23

x=-12

 

y-18=-52 |+18

y=-34

 

2,4+a=7,1 |-2,4

a=9,5

 

5 2/3 = b+2 1/2 |-2 1/2

3 1/6=b

 

4x + 2/5 =3x |-4x

2/5=-x |·-1

-2/5=x

 

-5y= 2,6-4y|+4y

-y=2,6 |·-1

y=-2,6

 

3z=17 |:3

z=2 5/6

 

4a = - 4/9 |:4

a=1/9

 

-1/3 b = -7 |·-3

b=21

 

2x+1=7-x |+x

3x+1=7 |-1

3x=6 |:3

x=2

 

18-7y=-2y-57 |+2y

18-5y=-57 |-18

-5y=-75 |:-5

y=15

 

0,8z + 6=z +24 |-z

-0,2z+5=24 |-5

-0,2z=19 |·-5

z=-95

 

a - 4 =2/3 a - 8 |-2/3a

1/3a-4=-8 |+4

1/3a=-4 |·3

a=-12

 

6 4/5 = 1/7 b - 1/5 |+1/5

7=1/7b |·7

49=b

Answer 2

x+23=11
x=11-23
x=-12

 
y-18=-52
y=-52+18
y=-34

 

2,4+a=7,1
a=7,1-2,4
a=9,5

5 2/3 = b+2 1/2
b=5 2/3-2 1/2
b=3 1/6

4x + 2/5 =3x
-x=2/5*-1
x=-2/5

 
-5y= 2,6-4y
-y=2,6·-1
y=-2,6

 
3z=17
z=17:3
z=2 5/6

4a = - 4/9
a= (-4/9):4
a=1/9
 

-1/3 b = -7
b=-7·-3
b=21

 

2x+1=7-x
3x+1=7
3x=7-1
3x=6
x=6:3
x=2

 

18-7y=-2y-57
18-5y=-57
5y=-57-18
5y=-75
y=-75:-5
y=15

6 4/5 = 1/7 b - 1/5
6 4/5+ +1/5= 1/7 b
7=1/7b
b=1/7*7
b=49

Nieuminałem dwóch wszystko jest dobrze pomogłem ci licze na naj