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50;4
5;7;1;1;12;90
50;4
5;7;0;0;12;91
5;7;0;0;12;91
| 4d+7a=4d+7a | | 9a^2b^2-5ab-2=0 | | 4(2x+1)=7+3(2x-5) | | 4x-28=x+68 | | 0.3=2-0.8x | | 36a^3b^4-20a^2b^3-8ab^2=0 | | 13x+(4+4)=10 | | 8(4s+9)=424 | | 3(2l+3)=57 | | (x+5)2=3-(x+3)7 | | 3b-3/4=b-4/12 | | (33x^2)/3=29744 | | -(x-2)-4=x-5-3x | | 1*x^4+4*x^3+x^2-6x=0 | | 7x+2+4x+7+8x=180 | | 17-38=x | | 2x+x+3x+5=35 | | 94-4.8= | | 5x-9=-26 | | (2X+4)(3X+1)=0 | | 5x(2x+3)+4(x-1)-7x= | | =x^4-2x^3-8x^2-4x+3 | | 2bc(a+b+c)= | | 97-4.8= | | 3x-12=2y-9 | | 3a+1c=30 | | 2x-5(-2)=20 | | 6k-6=6+4x | | -4+2d+3d+9d=5d | | 0.7x-0.7y=4.9 | | x^2-10x^2-7=0 | | y=3/4x=9 |