Bonjour,je n'arrive pas à comprendre comment réduire les expressions voila les calculs expliquez moi svp
5x+8-4x+x-7
11-x+8x+4+13 x
4x+(5-7x)
4x-(10-7x)+x-3
Merci d'avance a vous
5x+8-4x+x-7
11-x+8x+4+13 x
4x+(5-7x)
4x-(10-7x)+x-3
Merci d'avance a vous
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Verified answer
Bonsoir,5x+8-4x+x-7= 2x+1
11-x+8x+4+13 x= 20x+15
4x+(5-7x)= -3x+5
4x-(10-7x)+x-3= 4x-10+7x+x-3= 12x -13
Verified answer
Bonjour,5x+8-4x+x-7 = (5-4+1)x+(8-7) = 2x+1
11-x+8x+4+13x = (-1+8+13)x+(11+4) = 20x+15
4x+(5-7x) = 4x+5-7x = (4-7)x+5 = -3x+5
4x-(10-7x)+x-3 = 4x-10-(-7x)+x-3 = 4x-10+7x+x-3 = (4+7+1)x+(-10-3) = 12x-13