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2*(2/5)-(1*(7/8))
2/5*2-(1*(7/8))
4/5-(1*(7/8))
4/5-(7/8*1)
4/5-7/8
-3/40
| 2x*8*2-x=2 | | 6x^2-24y^2= | | 2g-4=12 | | 3a^2-27b^2= | | 51/x/3/1 | | 5/6:n=1/4:8/9 | | a^5-5(a^4)+ln(a^15)+4=0 | | G(0)=3x+4 | | 54/m=6 | | y=-1/6x-3 | | a^5-5(a^4)+15lna+4=0 | | -11=-t+8 | | N/4=25/n | | 91-q=32 | | 4y+9=49 | | X/8=5/100 | | sin^3x=27cos^3x | | x/148=4/1 | | y=nx-5 | | 5a^2-5b^2= | | x/148=4:1 | | 62=7e^8t | | T=8u^2v | | 8a-5=131 | | 1/2:1/3=n:20 | | a^5-5(a^4)+15ln(a)+4=0 | | y=integral(2*x*exp(-0.5*x)) | | -6=14-1/3 | | -4-10n=16 | | -6=-4x-1/3 | | 7/11=15/n | | 2x-12=6x-8 |