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2009-04-15T18:44:39+02:00
C) 10 = 4 -2x
10 - 4 = -2x
6 = -2x | :(-2)
-3 = x

d)-(2x-1)=4
-2x + 1 = 4
-2x = 4-1
-2x = 3 |:(-2)
x = -1,5


2009-04-15T18:44:49+02:00
C) 10=4-2x
2x=-10+4
2x=-6/:2
x=-3
d)-(2x-1)=4
-2x+1=4
-2x=4-1
-2x=3/:-2
x=-1,5
2009-04-15T18:48:08+02:00
A) 10 = 4 - 2x
2x=4-10
2x= -6 /2
x= - 3

d) - (2x-1)=4
-2x + 1=4
-2x=4-1
-2x=3/-2
x= -1,5