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4.2*x
100/c
-7/2.8
((1/4)*x^2)^2 = 0;x
x
55*1.22^x
| 4x^2-21x^2+5=0 | | 140=5(8-4x) | | 2x-1y=3.25 | | 5n-4(n+1)=-20-5n | | 18x+0(10-x)=1.2 | | 194=2+4(-8p-8) | | 3u3/4 | | 12m^2-21=-3m | | 84+4y+(3y+22)=180 | | 4x=22x+90 | | 494-v=247 | | x+x+25+2x=137 | | -8(1+8m)=-520 | | 9x=8x*6 | | 6.6x-6+x-2.1= | | 8n=2n+5(n+3) | | -x(1-x)2=16 | | x+23x+2x+x+23=102 | | x+23x+2x+x+23= | | 9x-1=24x+14 | | ln*(x+2)-ln*2x=0 | | 6h+7=7h+5 | | -17+21=-5 | | 4z+32+6z-2+90=180 | | -5x^2+5x+100=0 | | 104=2(2x+4+x) | | 7x+2y=-36 | | 20(m*m)-40m=0 | | 3p^2-19=0 | | 0.3x+1.1=0.6x-0.7 | | 7p^2-11=0 | | 0.04-0.03(x+3)=-0.04(3-x) |