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15/(a^2)-1 = (5/2)*a-1
10*sin(2*t)
5;14;1;3
9;10;4;9
5*x-(3/(-2)) = x-(3/2)
| x+12x-16=88 | | 2(x)-3=132 | | 15/a^2-1=5/2a-1 | | 4(n-6)+7(4-2n)=34 | | 15(2a-2)=5(a^2-1) | | 6x^2-200x-9600=0 | | 6(x)-6=78 | | 19x^2-140x-180=0 | | 3(x)+x=192 | | 3u*u=15*5 | | 2y^2-2y-60= | | U*3u=15*5 | | U(3u)=15(5) | | 80y-340=60y | | 80y-305=60y | | 2x+4+6x+20=90 | | 10x^2+18x-36=0 | | 5x-3/-2=x-3/2 | | -16t^2+1=0 | | 7x+7=1-x | | -3v+8=v-2+6 | | 5(x)-8=172 | | -(5/2)x=30 | | x^2+210x-27000=0 | | 5-3ln(x)=9 | | (2/9)/(7/15)=x | | 11x-12+2x+10=180 | | 1/2/y=1/3/12 | | -21a=8-25a | | x-8+5(x)=172 | | 4=(7/3)-(6/x) | | (7/8)/-(3/5)=x/(2/5) |