Rozwiąż równania. e) -2(2x-1)= x/3
f) 2/5 (3-x) = -2
e) -2(2x-1)= x/3
-4x+2=x/3 /*3
-12x+6=x
-13x=-6 /:(-13)
x = 6/13
6/5 - 2/5x = - 2
-2/5 x = -10/5 - 6/5 = -16/5 /*(-5/2)
x= 16/5 * 5/2 = 8
e]-2[2x-1]=x/3 -4x+2=x/3 /*3 -12x+6=x -12x-x= -6 -13x= -6 /:-13 x=6/13
f]2/5[3-x]=-2 6/5-2/5x=-2 /*5 6-2x= -10 -2x=-10-6 -2x=-16 /:2 x=8
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e) -2(2x-1)= x/3
-4x+2=x/3 /*3
-12x+6=x
-13x=-6 /:(-13)
x = 6/13
f) 2/5 (3-x) = -2
6/5 - 2/5x = - 2
-2/5 x = -10/5 - 6/5 = -16/5 /*(-5/2)
x= 16/5 * 5/2 = 8
e]-2[2x-1]=x/3
-4x+2=x/3 /*3
-12x+6=x
-12x-x= -6
-13x= -6 /:-13
x=6/13
f]2/5[3-x]=-2
6/5-2/5x=-2 /*5
6-2x= -10
-2x=-10-6
-2x=-16 /:2
x=8