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-15*(2/5)
-15*2/5
-6
| 400y=300x | | 7x+13=2(x-5)+3x+23 | | 10x-4y+25=4 | | 27+x=3 | | 400x=300y | | 5=-16t^2+261 | | 28x/x-1-8 | | 51=-4(2-6a) | | x-183.1=219.9 | | 3x-5(x-2)=-7+3x-13 | | sin(6x)cos(11x)-cos(6x)sin(11x)=-.01 | | a+27=56 | | 12*-11/3 | | 2t^3-15t^2-36t-40=0 | | C=c+3 | | Q=so+bp | | (b^4)(-3b^3)(-10b^2)=0 | | 10k^2-19k+6=0 | | 24/5*5/4 | | 24/5*1/4 | | 11x-3x+90=11x+60 | | 10x-4y+25=2 | | 33+33-44+x=100 | | 5/2*11/4 | | 10x-4y+25= | | 5/2*1/4 | | 6.2x=12 | | 12=4(y-5)-8y | | 7/3*7/6 | | 56x=-6+35x | | 5x+9x-18=36-4x | | -80=10x-10y |