Website Statistics a 3x15x4 b 1356x3 c 3x22x4x d 3x454x13

Répondre :

a) 3x -3 = 5x +4

    -2x = 7

    x = - 3.5

 

b) -1/3 +5/6 = x/3

    -2/6 +5/6 = 2x/6

    3/6 = 2x/6

 

c) 3x -6 = 2x -8 +x

    0x = -2

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