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2010-03-04T18:38:12+01:00
1. x+5 = 10 x=5
2.2x+3=15 x=6
3.5x+13=23 x=2
4.3x+11=41 x=10
5.-x+2=8 x= -6
6.-x+5=-2 x=7
7.-2x-7=11 x=-9
8.-5x+3= -12 x=3
2010-03-04T18:39:39+01:00
1. x+5 = 10
x=10-5
x=5
2.2x+3=15
2x=15-3
2x=12 :2
x=6
3.5x+13=23
5x=23-13
5x=10 :5
x=2
4.3x+11=41
3x=41-11
3x=30 :3
x=10
5.-x+2=8
-x=8-2
-x=6 :(-1)
x=-6
6.-x+5=-2
-x=-2-5
-x=-7 :(-1)
x=7
7.-2x-7=11
-2x=11+7
-2x=18 :(-2)
x=-9
8.-5x+3= -12
-5x=-12-3
-5x=-15 :(-5)
x=3
2010-03-04T18:45:21+01:00
X=10-5
5.-x+2=8 8.-5x+3= -12
x=5 -5x=-9/(-5)
-x=6*(-1) x=1i cztery piąte
2x=15-3 x=-6
2x=12/2
x=6
6.-x+5=-2
3.5x+13=23 -x=-2-5
5x=10/5 -x=-7*(-1)
x=2 x=7

4.3x+11=41 7.-2x-7=11
3x=30/3 -2x=4/(-2)
x=10 x=-2