x+75=57 x=57-75 x=-18 1[2/3]+y=2[3/4] y=2 3/4 -1 2/3 y=2 9/12- 1 8/12 y=1 1/12 x-34=-35 x=-35+34 x=-1 3x=2x+[1/7] 3x-2x=1/7 x=1/7 5y=13 y=2.6 [1/7]x=-2 x=-2*7 x=-14 -7b=[7/8] b=7/8/(-7) b=-1/8
x+75=57 x=57-75 x=-18 1[2/3]+y=2[3/4] y=2[3/4]-1[2/3] y=13/12 x-34=-35 x=-35+34 x=-1 3x=2x+[1/7] 3x-2x=[1/7] x=[1/7] 5y=13 y=13-5 y=8 [1/7]x=-2 x=-14 -7b=[7/8] b=-7/56 97=2x-5 -2x=-5-97 -2x=-102/(-2) x=51 43=7+9x -9x=7-43 -9x=-36/(-9) x=4 17=11-12x 12x=11-17 12x=-6/(12) x=-0,5 3[2/3]=[1/2]x-[1/3] -[1/2]x=-[1/3] -3[2/3] -[1/2]x=-4 x=8
