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2010-03-22T15:40:58+01:00
10=4-2x
10=2

-(2x-1)=4
1x=4

1 3 1
2010-03-22T15:41:14+01:00
10=4-2x
2x = -6 /: 2
x=-3


-(2x-1)=4
-2x +1 = 4
-2x = 3 /: -2
x = -1½
1 5 1
2010-03-22T15:42:50+01:00
A).10=4-2x
10-4=-2x
-2x=6/(-2)
x= -3

b). -(2x-1)=4
-2x+1=4
-2x=4-1
-2x=3
x=3/2
x=1 i 1/2
1 5 1