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7-(1/2) = 0
7-1/2 = 0
13/2 = 0
L <> R
| X-3+4x=12 | | 3x-15=63+7x | | 15=k*8 | | sin(6*π-π/6)=sin(-π/6) | | 4/7-x=3/7 | | sin(6*pi-pi/6) | | x^2-x+24=4 | | x-9=10/8(6-11x) | | x-9=5/9(5-8x) | | 2x-6+4x-8=5x+40 | | 4(3x-9)+9=3x+5 | | 8+5=62 | | 45m+34=-71m+36 | | r^2=77 | | (100-a)+(100-b)+(100-c)=100 | | a=100+(-10b)+(-8c) | | (3^2)4/(27)= | | (a*1)+(b*10)+(c*8)=100 | | (21x+14)+(18x+10)=180 | | r/0.5=4 | | (13x+24)+(21x)=x | | -2x+3=0.5 | | z-1.7=8 | | (13x+24)+(21x)=180 | | 26-y=3y | | 2-1.7=8 | | a/16=4= | | x/10-4= | | 2/16=4 | | 3x+12+138=180 | | x+40+3x+c-10=180 | | 25n(n+1)=50 |