Question

-4/3 + X = 1/15
-2/4 - X= 4/6
7/9.X -4/6 =
X % -2/4 = -3/7

Answer 1

A)

-4/3 + X = 1/15

3x -4/3 = 1/15

3x - 4 = 3(1/15)

3x - 4 = 1/3

3(3x -4) = 1

9x - 12 = 1

9x = 1 + 12

9x = 13

b)

x = 13/9

-2/4 - X= 4/6

4x + 2/4 = 2/3

4x + 2 = 4(2/3)

4x + 2 = 8/3

3(4x + 2) = 8

12x + 6 = 8

12x = 8 - 6

12x = 2

x = 2/12

x = 1/6

c)

7/9.X -4/6 =

7x/9 = +4/6

7x = 9(4/6)

7x = 6

x = 6/7

d)

X % -2/4 = -3/7

4x - 2/4 = -3/7

4x - 2 = 4(-3/7)

4x - 2 = -12/7

7(4x - 2) = 12

28x - 14 = 12

28x = 12 + 14

28x = 26

x = 26/28

x% = 13/14

;)

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