Question

(x-4)/2 + (1)/6= (x+5)/3
(x+6)/5 +2 = (x+1)/2
(x-3)/4 + (x-2)/4= (x+4)/6
(x+5)/3 - (x-4)/5 = (1-x)/15
(2x-3)/4- (2-x)/2= 2 - (x+3)/8


vreau sa precizez ca ,, / '' inseamna ,,pe'' adica un exemplu 2x-3 pe 4

Answer 1

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Answer 2

( x - 4 ) / 2 + 1 / 6 = ( x + 5 ) / 3

cmmmc al numitorilor 2;  3  si 6 este 6

3 ( x - 4 ) + 1 = 2 ( x + 5 )

3 x - 12 + 1 = 2 x + 10

3 x - 2 x = 10 + 11

x = 21

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( x + 6 ) / 5 + 2 = ( x + 1 ) / 2

2 ( x + 6 ) + 2 x 10 = 5 ( x + 1 )

2 x + 12 + 20 = 5 x + 5

5 x + 5 = 2 x + 32

5 x - 2 x = 32 - 5

3 x = 27

x = 27 : 3

x = 9

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( x - 3 ) / 4 + ( x - 2 ) / 4 = ( x + 4 ) / 6

( x - 3 + x - 2 ) / 4 = ( x + 4 ) / 6

( 2 x - 5 ) / 4 = ( x + 4 ) / 6

6 ( 2 x - 5 ) = 4 ( x + 4 )

12 x - 30 = 4 x + 16

12 x - 4 x = 16 + 30

8 x = 46

x = 46 / 8

x = 23 / 4

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( x + 5 ) / 3 - ( x - 4 ) / 5 = ( 1 - x ) / 15

5 ( x + 5 ) - 3 ( x - 4 ) = 1 - x

5 x + 25 - 3 x + 12 = 1 - x

2 x + x = 1 - 37

3 x = - 36

x = ( - 36 ) : 3

x = - 12

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( 2 x - 3 ) / 4 - ( 2 - x ) / 2 = 2 - ( x + 3 ) / 8

2 ( 2 x - 3 ) - 4 ( 2 - x ) = 2 x 8 - ( x + 3 )

4 x - 6 - 8 + 4 x = 16 - x - 3

8 x + x = 13 + 14

9 x = 27

x = 27 : 9

x = 3