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Sagot :

AYUDA

bjr

a) -x+4=4. x-y= -x-6     je ne comprends pas

b)x+4=3.   pas de y ?

x-y=7

-y = 7 - x

y = x - 7

2x+y=1

y = 1 - 2x

5x+2y=2​

2y = 2 - 5x

y = 1 - 5/2x

GGDU19

Bonjour,

-x+4=4 <=> 0y=-1x+0   <=>  x=0

x-y=-x-6 <=> y=2x+6

x+4=3 <=> 0y=1x+1    <=>  x=-1

x-y=7 <=> y=x-7

2x+y=1 <=> y=-2x+1

5x+2y=2 <=> 2y=-5x+2 <=> y=-5x/2+1

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