Website Statistics Ex 1 Equations du type a x68 b54y485 Ex 2 Equations du type ax b b 7y 56 t xab a 5x45 c 15 d c 12z15 d 45t155 Ex 3 Equations du type ax b c a 3x1011 c 23x 9 b 5
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résolu

Ex 1: Equations du type :
a) x+6=-8
b)-5,4+y=4,85
Ex 2: Equations du type: ax = b
b) 7y = 5,6
t
x+a=b
a) 5x=-45
c) = -1,5
d)-
-
c) 12-z=-1,5 d) 4,5+t=15,5
Ex 3: Equations du type: ax + b = c
a) 3x-10=11
c) 2+3x= 9
b) 5+6y=-11
d)-t-9 11,2
= 7
Ex 4: Equations du type: ax + b = cx + d
a) 13x-8=3x+4
c) 2+3z7-3z
b) 5+6x=-x-9
d) 7-3,3z2z-9,7
AIDER MOI SVP C’EST POUR DEMAIN

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Bonjour,

Ex 1

a) x+6=-8 <=> x=-14

b) -5.4+y = 4.85 <=> y = 4.85 + 5.4 = 10.25

Ex 2

b) 7y = 5.6 <=> y = 5.6/7 = 0.8

a) 5x = -45 <=> x = -45/5 = -9

Ex 3

a) 3x-10 = 11 <=> 3x = 21 <=> x=7

c) 2+3x = 9 <=> 3x = 9-2 <=> 3x=7 <=> x=7/3

b) 5+6y = -11 <=> 6y = -11 - 5 <=> 6y = -16 <=> y=-16/6 = -8/

d) je n'ai pas compris ce que tu as écrit

Ex 4

a) 13x-8=3x+4 <=> 10x=12 <=> x=6/5

c) 2+3z = 7-3z <=> 6z = 5 <=> z = 5/6

b) 5+6x = -x-9 <=> 7x = -9-5 <=> 7x = -14 <=> x=(-2)

d) je n'ai pas compris ce que tu as écrit

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