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Sagot :

AYUDA

2(x-6) = 7x-6

2*x + 2*(-6) = 7x - 6

2x - 12 = 7x - 6

2x - 7x = -6 + 12

-5x = 6

x = -6/5

3 x(x+2) = 3 + 3x²

3x*x + 3x*2 = 3 + 3x²

3x² + 6x = 3 + 3x²

6x = 3

x = 3/6 = 0,5

8(x+8) = 5x-7

8*x + 8*8 = 5x - 7

8x + 64 = 5x - 7

8x - 5x = -7 - 64

3x = - 71

x = -71/3

-6(-x-4)= -x + 6​

à toi

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