Rozwiąż równania : a) -3x=2x-10 b)2x-2=7-x c)10=4-2x d)-(2x-1)=4 PLS. Z GÓRY NAJ:D
a) -3x=2x-10
-3x-2x=-10
-5x=-10/(-5)
x=2
b)2x-2=7-x
2x+x=7+2
3x=9/3
x=3
c)10 =4-2x
10 -4=-2x
6=-2x
-2x=6/(-2)
x=-3
d)-(2x-1)=4
-2x+1=4
-2x=4-1
-2x=3/(-2)
x=-1,5
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a) -3x=2x-10
-3x-2x=-10
-5x=-10/(-5)
x=2
b)2x-2=7-x
2x+x=7+2
3x=9/3
x=3
c)10 =4-2x
10 -4=-2x
6=-2x
-2x=6/(-2)
x=-3
d)-(2x-1)=4
-2x+1=4
-2x=4-1
-2x=3/(-2)
x=-1,5