Résoudre les équations suivantes DETAILLES :
a) 11 = -2 + x
b) -4 = x + 12
c) x - 4/3 = 1
d) 3/4 + x = 5/4
e) 7/2 = x - 1
f) - 2/5 = 4 - x
a) 11 = -2 + x
b) -4 = x + 12
c) x - 4/3 = 1
d) 3/4 + x = 5/4
e) 7/2 = x - 1
f) - 2/5 = 4 - x
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11+2==
x=13
b) -4 = x + 12
-4-12=x
x= -16
c) x - 4/3 = 1
x= 1+4/3
x= 3/3+4/3
x=7/3
d) 3/4 + x = 5/4
x= 5/4-3/4
x=2/4
e) 7/2 = x - 1
7/2+1=x
7/2+2/2=x
x=9/2
f) - 2/5 = 4 - x
-2/5-4=x
-2/5-20/5=x
-22/5=x