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(3*pi)/2
(-1/2)*cos(x)
0*x+0*y;0*x+0*y
1*x^7
8*x^8
| 7x+(-3x)+8=x-2(x-1) | | sin(8*x)=8*sin(x) | | sin(-8x)=-8sin(x) | | 7-y/12= | | 3ab+1ac= | | Log(5x+3)=1+log(x-9) | | 30.38=w+0.4w | | -4a+6+8a=5a-3a | | 30.38=w+0.4x | | -4+a+6+8a=5a-3a | | F-320=647 | | 35h=0 | | (pi)(cos((pi)(x)/2)/2 | | Y-27=94 | | 5m-2n=6 | | 6=-4.9t^2+8.1t+3 | | 6=-4.9t^2+8.1t | | 7r=560 | | V/4=15 | | 331-7/6=x | | 2x+21x+8=0 | | sqrt(280x+345)-4sqrt(17x+19)=1 | | G+43=88 | | 7[2-4(y-1)]=7(2y+8) | | M+18=26 | | 10x=-10+x | | 3z-9=z+3 | | (x+2i)(x-21)=0 | | 4(-1)(-4)= | | -1(-4)(-3)(-3)= | | 7w+20=11w | | .09x=54863 |