Question

69-x=x+96

2-x=5-2x

7x+7=35

1/2x+5=x+8

1cała i 2/3 + y =2całe i 3/4

3x=2x+1/7

x+75=57 pomocyyyyy jeszcze razzzzzzzz!!!!!!!!!!!!!!!

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Answer 1

69-x=x+96

-2x=27 

x=-13,5

 

2-x=5-2x

x=3

 

7x+7=35

7x=28

x=4

 

1/2x+5=x+8

-0,5x=3

 x=-6

 

1cała i 2/3 + y =2całe i 3/4

y=1/12 

 

3x=2x+1/7

x=1/7

 

x+75=57      

x=-18

Answer 2

69 - x = x+96

-x -x = 96 - 69

  - 2x = 27 / :(-2)

     x = 13,5

 

2 - x = 5 - 2x

-x +2x = 5 - 2

     x = 3

 

7x + 7 = 35

7x = 35 - 7

7x = 28 / :7

 

1/2x + 5 = x +8 

1/2x - x = 8 -5

    -1/2x = 3  /: ( -1/2)

       x = 3 *(-2/1)

       x = - 6

 

1 i 2/3 + y = 2i3/4

y = 2 i3/4 - 1 i2/3

y = 2 i 9/12 - 1 i 8/12

y = 1 i 1/12

 

3x = 2x + 1/7

3x - 2x =  1/7

   x = 1/7

 

x + 75 = 57

x = 57 - 75

x = - 18