1. rozwiąz równania
a.) -3x=2x-10
b.)2x-2=7-x
c.)10=4-2x
d.)2(x+1)=x
a)-3x=2x-10//-2x
-5x=-10//-5
x=2
b)2x*2=7-x //-7
2x=7-x+2
2x=9-x //+x
2x+x=9
3x=9
x=3
c)10=4-2x
10-4=-2x
6=-2x //-2
-3=x x=-3
d)-(2x-1)=4
-2x+1=4 //-1
-2x=3 // : -2
x= 1,5
-3x=2x-10
5x= -10
x=-10/5
x=-2
2x-2=7-x
3x-2=7
x=9/3
10=4-2x
2x+10=4
2x=-6
x=-6/2
x=-3
2(x+1)=x
2x=2=x
x+2=0
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a)-3x=2x-10//-2x
-5x=-10//-5
x=2
b)2x*2=7-x //-7
2x=7-x+2
2x=9-x //+x
2x+x=9
3x=9
x=3
c)10=4-2x
10-4=-2x
6=-2x //-2
-3=x x=-3
d)-(2x-1)=4
-2x+1=4 //-1
-2x=3 // : -2
x= 1,5
-3x=2x-10
5x= -10
x=-10/5
x=-2
2x-2=7-x
3x-2=7
3x=9
x=9/3
x=3
10=4-2x
2x+10=4
2x=-6
x=-6/2
x=-3
2(x+1)=x
2x=2=x
x+2=0
x=-2