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00Marie00
@00Marie00
April 2019
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Résoudre chaque équations: a) 5x = 20 b) 5+x = -20 c) xsur5 = -20 d) x+8 = 0 e) 9x = 0 f) 3x - 7= 0
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maudmarine
Verified answer
A)
5x = 20
x = 20/5
x = 4
b)
5+x = -20
x = - 20 - 5
x = - 25
c)
x/5 = -20
x = - 20 * 5
x = - 100
d)
x+8 = 0
x = - 8
e)
9x = 0
x = 0
f)
3x - 7= 0
3x = 7
x = 7/3
0 votes
Thanks 1
peg05
Résoudre les équations
a)
5x=20
x=20/5=x=4
b)
5+x=-20
x= -20-5
x=-25
c)
x/5=-20
x/5=-100/5
5x=-500
x= -500/5=-100
d)
x+8=0
x=-8
e)
9x=0
x=0
f)
3x-7=0
3x=7
x=7/3
0 votes
Thanks 1
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Verified answer
A)5x = 20
x = 20/5
x = 4
b)
5+x = -20
x = - 20 - 5
x = - 25
c)
x/5 = -20
x = - 20 * 5
x = - 100
d)
x+8 = 0
x = - 8
e)
9x = 0
x = 0
f)
3x - 7= 0
3x = 7
x = 7/3
a)
5x=20
x=20/5=x=4
b)
5+x=-20
x= -20-5
x=-25
c)
x/5=-20
x/5=-100/5
5x=-500
x= -500/5=-100
d)
x+8=0
x=-8
e)
9x=0
x=0
f)
3x-7=0
3x=7
x=7/3