Bonjour aider moi stpRésoudre les équations suivantes40-X=33, X + 8 = 1X - 102 = 1012X = 19X = 72 8X.... Pergunta de ideia deGem

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Bonjour aider moi stp

Résoudre les équations suivantes
40-X=33,
X + 8 = 1
X - 102 = 101
2X = 1
9X = 72
8X = 24
X sur 3 = 6
X sur 100 = 6.4
77 sur X = 7
543 sur X =0.543

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geekkhalil Salut :)
40 -x = 33
-x = - 40 + 33
-x = -7
x = 7

x + 8 = 1
x = -8 + 1
x = -7

x - 102 = 101
x = 102 + 101
x = 103

2x = 1
x = $\frac{1}{2}$
x = 0.5

9x = 72
x = $\frac{72}{9}$
x = 8

8x = 24
x = $\frac{24}{8}$
x = 3

$\frac{x}{3}$ = 6
x = 3 × 6
x = 18

$\frac{x}{100}$ = 6.4
x = 100 × 6.4
x = 640

$\frac{77}{x}$ = 7
x = 11

$\frac{543}{x}$ = 0.543
x = 1000

2 votes Thanks 1

dansavecleslou 1)-x=33-40
6x=6è
X=7
2)x+8=1
   x= -8+1
   x= -7
3)x-102=101
x=102+101
x=203
4)2x=1
   x=1:2
   x=0,5
5)9x=72
x=72:9
x=8
6)8x=24
9)77 sur x=7
x=77:7
x=11
10)
x=24:8
x=3
7)x sur 3=6
x=3x6
x=18
8)x sur 100=6.4
x=100x6.4
x=640
9)77 sur x=7
x=77:7
x=11
10)543 sur X=0,543
x=1000

1 votes Thanks 1