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3*6*(1/2)
18*(1/2)
1/2*18
9
| 2.5x=365 | | 4.7+0.05x=509 | | 0.5-1.3n=10.77 | | 0.2+1.5a=14.84 | | 5(3+4)-2x=7 | | 0.4n+3.6=6.84 | | 9k+1.5=3 | | 3(2x-5)+5x=7 | | x+15+15+5+20=100 | | 13-4x=1-8x | | 17x^2-40x+25=0 | | x+15+5+20=100 | | x+13+15+10=41 | | -0.01x^2+1.2x-5.8= | | -16x^2+32x+4= | | 2(x+4)=32-x | | 4x-x^2=0-12 | | y=x^13-5x | | 0.4+0.2=-1.8 | | 6x+2=5(x+3) | | 12*4x=x^2*0 | | -0.5x+7.44=-0.7x+9.44 | | ((2x-1)/3)=1-x | | -3.8x+2.3=16.7 | | 205=x(5x+4) | | (yx+1)dx+(1-xy)dy=0 | | 0.25x+0.4(75-x)=24 | | 0.25+0.4(75-x)=24 | | (0.45)-(-0.09)= | | (3x+1)(5x-7)=0 | | 2x+1=5x+2-3x-6 | | 2(2x-4.9)=8x-9.8 |