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(625-y^2)y^2=0
| 4(2n-5=3n+10 | | 5^x=45 | | x=2+8/9 | | 50+x=50+x | | 64u2^-232u+99=0 | | 12x/12=43/12 | | -23+2v=7v+4(3v+7) | | 3x–8=x+6 | | -23+2v=7v+4(3v+7 | | 9x/9=26/9 | | x^2-20x+93=0 | | x^2+18x=-75 | | x-50=-55 | | 7j=-42 | | -3.2+5a=90 | | 5x-60+2x=x | | -6(2x+4)=24 | | -5(2x-5)=85 | | 22/6×13/6=a | | 11x+3=-17+6x | | 18=n-6 | | 9x+18=44 | | 73=3-5(1-3x) | | 4(3x+5)=63 | | a=(21/3)(11/2) | | 3(3x-5)-4x+7=12 | | 11+6x−14=3/5(15x−5) | | 6(6x-8)-5x+7=83 | | a=21/3-11/2 | | 4(3x-4)=-76 | | b+171/8=4/7 | | 4=p+5+4 |