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sin(x)/cos(x)
3*x-2 = -1/2
6/(-4) = -6
21/j = 3
(21/10)*a = 21/10
| 1=4p-8-3p | | 3x+10+4+16=180 | | 13-j=5 | | p=(70-2q)q | | 5m-m=5 | | -2z-(-8)=-6z-8 | | 17-3(w+5)=6 | | 2x^4-8x^3-42x^2=0 | | -3x-18=-7x+2 | | 189=-9(-3n-6) | | 4+f=5 | | (x+3)-2x+8=28 | | 3x+1+4x+4=180 | | 3+6n=3(8n-5) | | 3x-2=-1/2 | | 4r-20= | | -4x-5(3x+10)=126 | | -9c-9c-12= | | 6/-4=-6 | | A(n)=-6-6(n-1) | | 6x^5-96x= | | -9x-5x= | | -4+3x=18 | | -12-(5y-9)= | | -2a+40+8a=5a-9a | | (2x+y)(x-y)=45 | | -4k-6=50 | | 8x+4=8x-3 | | Y+382=743 | | 21/j=3 | | 3x+10=4x+16 | | 4x^2-210x+2450=1000 |