Réponses

2013-10-30T13:37:32+01:00
a. 5x=3x+3
5x - 3x = 3
2x = 3
x = 3/2

b. 8x=12x+4
8x - 12x = 4
-4x = 4
x = -1

c. 4-7y=10y
-7y - 10y = -4
-17y = -4
y = 4/17
2013-10-30T13:47:58+01:00
A. 5x=3x+3
5x-3x=3
2x=3
x=2/3

b. 8x=12x+4
8x-12x=4
-4x=4
x=-1

c. 4-7y=10y
-7y-10y= -4
-17y= -4
y=4/17