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Sagot :

6x + 3x + 15-x-3=4x-8
6x+3x-x-4x=-8-15+3
4x=-20
x=-20/4
x=-5
NOEM57
6x+3(x+5)-(x+3) = 4(x-2)
6x+15x-3x = -8x
21x - 3x = -8x
18x = -8x

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