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2*x
ln((x^2+1)^(1/2)+x)
3*(sin(x))^2-(sin(x))^3
0.05/x = 2
m/7 = 3/35
| -2x-3(x+13)=-9 | | 2g-23k=29 | | 25c=5 | | (9x-1)+(6x+58)=87 | | 8-(2x+4)+3x=2x-4 | | (7x+30)+(9x+42)=104 | | 2w-2+4(3w+1)=-2(w+8) | | (4x+52)+(8x-10)=90 | | 6(w+6)=-2(5w-9)+w | | 5y+6y-81=7y+1+65y | | 0=-x+1.7 | | 7+2(5v-9)=-2(4v-2)+9v | | -3(-5x+2)-6x=3(x-4)-8 | | 2x^2=3+3x | | I=20x^2+400x | | 100/98*86= | | n^2+n-10.5=0 | | 3u-9+3(4u+2)=-3(u+4) | | 0=0.7x+3 | | 0=0.7x | | n^2+n=10.5 | | 2(y+4)=-2(8y-7)+2y | | 4x^2-32y+4x-63=0 | | 4cos^2x+cos(x)=0 | | Y=3x+1200 | | 9+21lnx=2 | | 0.05/x=2 | | .7x-1.5=1.3 | | 8+2(4x-6)=-2(7x-3)+4x | | -2x+5+6x=2(2x-4) | | 7x^2+3x-42=0 | | 0=-2x-1.5 |