Răspuns :
0,8[1,(6)x-0,2(7)]=1,25x
8/10[15/9x-25/90]=125/100x
4/5[5/3x-5/18]=5/4x4/3x-2/9=5/4x
12*4x-2*4=5*9x
36x-8=45x
36x-45x=8
-11x=8
x=-8/11
8/10[15/9x-25/90]=125/100x
4/5[5/3x-5/18]=5/4x4/3x-2/9=5/4x
12*4x-2*4=5*9x
36x-8=45x
36x-45x=8
-11x=8
x=-8/11
0,8 [1,(6)x-0,2(7)]=1,25x
8/10[15/9x-25/90]=125/100x
4/5[5/3x-5/18]=5/4x4/3x-2/9=5/4x
12*4x-2*4=5*9x
36x-8=45x
36x-45x=8
-11x=8
x=-8/11
8/10[15/9x-25/90]=125/100x
4/5[5/3x-5/18]=5/4x4/3x-2/9=5/4x
12*4x-2*4=5*9x
36x-8=45x
36x-45x=8
-11x=8
x=-8/11