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Sagot :

4-2x-5x=-5x-1+2
4-7x=-5x+1
4-7x+5x=1
-7x+5x=1-4
-2x=1-4
-2x=-3
x=3/2

bonjour

1 - 2x +3 - 5x = -x – 1 +2 - 4x​

-2x-5x+1+3 = -x-4x-1+2

-7x+4=-5x+1

-7x+5x=1-4

-2x=-3

x=3/2=1,5

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