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x in (-oo:+oo)
10*(1/2)*x = 0
5*x = 0 // : 5
x = 0
x = 0
| 20-d=-4-3d | | x(x-32)=5220 | | (9+u)(6u+4)=0 | | 5(x+3)-(-3x-5)= | | x(x-32)=8025 | | x-32=68 | | -9y-5=8y+1 | | x(x-15)=7600 | | x(x-15)=5950 | | 1328400=0.5*9840*x^2 | | 0.21y-2.2=0.11y+1-0.7y | | (5x-4)squared= | | 4x(9x-7y)= | | 8z-25=-25+6z | | X-3=1.2 | | 7x-(3x+5)-8=(1/2)(8x+20)-7x+5 | | 10x=-8 | | X+3=1.2 | | 8x+3=6x+43 | | 3y^2-4y+21=0 | | 3y^2-4x+21=0 | | x(x-7)=1100 | | x(x-7)=1150 | | -7x-1.7=-9x-0.6 | | 4(9x-7)= | | x-7=750 | | 9x+7y-3x+2y= | | 4x+3=x+3.3 | | x^7=12 | | 15000+0.1x=25000+0.05x | | 2.6y=8.8 | | -(x-7)+(5/3)=2(x+9) |