equation du type ax=b
z/5=3/4
x/-8=8/9
2x/9=-7/27
x/7=7/6
x/12=7/3

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Question

Grade: Education Subject: mathematiques
equation du type ax=b
z/5=3/4
x/-8=8/9
2x/9=-7/27
x/7=7/6
x/12=7/3
Asked by:
103 Viewed 103 Answers

Answer (103)

Best Answer
(162)
z/5=3/4 donc z=15/4 donc z=3.75
x/-8=8/9 donc x=-64/9
2x/9=-7/27 donc x=9/2*(-7/27) donc x=-7/6
x/7=7/6 donc x=49/6
x/12=7/3 donc x=84/3
(389)
Salut Sandrine ^^

Politesse la prochaine fois stp !

1) z/5=3/4
z=15/4
z=3,75

2) x/-8=8/9
x=-64/9

3) 2x/9=-7/27
2x= (-7/27) * 9
2x = -7/3
x = (-7/3) / 2
x = -7/6


4) x/7=7/6
x=49/6

5) x/12=7/3
x=84/3

J’espère t’avoir aidé !