Rozwiąż równania :
a) 7x-6=-6x+7
7x+6x=6+7
13x=13
x=1
b)
1/2x+2=x
1/2x-x=-2
-1/2x=-2
x=4
c)
-7(2x+1)=4
-14x-7=4
-14x=4+7
-14x=11
x=-11/14
d)
8=6(x-1)-4x
8=6x-6-4x
-6x+4x=-6-8
-2x=-14
x=7
e)
2(1-x)=6(2x-2)
2-2x=12x-12
-2x-12x=-12-2
-14x=-14
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a) 7x-6=-6x+7
7x+6x=6+7
13x=13
x=1
b)
1/2x+2=x
1/2x-x=-2
-1/2x=-2
x=4
c)
-7(2x+1)=4
-14x-7=4
-14x=4+7
-14x=11
x=-11/14
d)
8=6(x-1)-4x
8=6x-6-4x
-6x+4x=-6-8
-2x=-14
x=7
e)
2(1-x)=6(2x-2)
2-2x=12x-12
-2x-12x=-12-2
-14x=-14
x=1