Bonjour,
K = 5x - ( 2x - 3 )
K = 5x - 2x + 3
K = 3x + 3
M = 4 + 6x - ( -2x + 7 )
M = 4 + 6x + 2x - 7
M = 6x + 2x - 7 + 4
M = 8x - 3
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Bonjour,
K = 5x - ( 2x - 3 )
K = 5x - 2x + 3
K = 3x + 3
M = 4 + 6x - ( -2x + 7 )
M = 4 + 6x + 2x - 7
M = 6x + 2x - 7 + 4
M = 8x - 3