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2/3-(8/1) = 0
1;6;1;7;0;0
28 = (-7/2)*z
1;4;1;5;0;0
1;2;1;3;0;0
| x+5=25*3-15 | | 2/3-8/1 | | x^4+y^4=a(x^2)y | | -47=-7 | | X+82=32+100 | | 5y+9=36 | | 28=-7/2z | | 6-x+12=10x-4 | | 5j+b=102 | | r-((5k+5w))=0 | | r-((5*k+5*w))=0 | | 8-2a=3 | | 8.74/2.7 | | 2.7/8.64 | | 7x-4=4x-5 | | 2x+3=4xy+4x+2y+4x^2+3 | | 5k=r-5w | | 5x+3-y=y+3+x | | 7+3x-11+4x=2x+3+2x+4 | | (5u-3)(7+u)=0 | | 22-2=2y/5 | | 5u+u= | | y=-7sinex | | 6(x-2)=31.8 | | 4(x+-8)+-10x= | | 8÷12×3/4 | | (m-1)x^2+2mx+m-3=0 | | 3(4z-7)-2(z-5)= | | 5(x-7)-8= | | -(2-4x)+3x=12 | | x^2=7/18 | | 3x+13+2x=78 |