Question

k:7 =14 24 : u = 6 -5v = - 50 2*(5x-1) = 8 0.5 * (4y+6) =3

-3(x-2)=-9 x-34=-35 4x=3-5 64+2x=44+x 3-x=-2x

4+3x=2+2x 3x-1=5x y-3=9-y 0.5z+6=z-1

Answer 1

k:7=14

k=14*7

k=98

 

24:u=6

u=24:6

u=4

 

-5v=-50 /: (-5)

v=10

 

2*(5x-1)=8

10x-2=8

10x=8+2

10x=10  /: 10

x =1

 

0.5*(4y +6)=3

2y +3 =3

2y=3-3

2y=0  /:2

y =0

 

-3(x-2)=-9

-3x+6=-9

-3x= -9-6

-3x= -15 /: (-3)

x=5

x-34=-35

x=-35+34

x=-1

 

4x=3-5

4x=-2  /:4

x= -0.5

 

64+2x =44+x

2x -x =44-64

x=-20

 

 

3-x=-2x

-x+2x=-3

x=-3

 

 

4+3x=2+2x

3x-2x=2 -4

x =-2

 

3x-1=5x

-1= 5x-3x

-1=2x  /:2

-0.5=x

 

y-3=9-y

y+y=9+3

2y=12 /:2

y=6

 

0.5z +6=z-1

6+1=z-0.5z

7=0.5z /:0.5

14=z

 

0.5z