developpe et reduis les expressions

a: 11+(x-6)+4(-3x-6)
b: -2(x-5)-(7-4x)
c: -7y-4(3y-6)+3-(3y-7)

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Grade: Education Subject: mathematiques
developpe et reduis les expressions

a: 11+(x-6)+4(-3x-6)
b: -2(x-5)-(7-4x)
c: -7y-4(3y-6)+3-(3y-7)
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(187)
bonjour

a = 11 + x - 6 - 12 x - 24
a = - 11 x - 19

b = - 2 x + 10 - 7 + 4 x
b = 2 x + 3

c = - 7 y - 12 y + 24 + 3 - 3 y + 7
c = - 22 y + 34