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4/5-12 = 3/10
-56/5 = 3/10
L <> R
| 5y-5(2y-6)=15 | | -12x^2+17x+7=0 | | 7.32=13.53+2.81a | | -0.7=-7/9z | | 4(x^3-x+y)=0 | | 5r-19=-47+r | | x^3-21x^2+147x-343=729 | | g=70+3h | | 13m^2-15m=0 | | 5+y=7+y | | -y+138=247 | | 2(8y+7)-16y=14 | | (y+6)2=1 | | 5t/9-3/4=1/12+5t/8 | | 7-10/5 | | 4x^3+22x^2+30x= | | 1-6/5 | | H^2=33-4h | | 3/8(8t-4)=-2 | | 4(4y+3)(6y+8)= | | t/7=9/21 | | 15/a+3/8 | | x^2+x+1/4=0 | | f(x)=2x^2-12x+40 | | 8-1/3x=92 | | y=x^2-14x+9 | | 1/3n=2/9 | | 700+x(20)=5500 | | 36-m=24 | | -3/4=2x+3 | | 3r-9r=30 | | -4(2-3x)=2(3x-8)+2x |