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d^2-7d+12;d^2-4d+3;d^2+4d-12;d^2-13d+12
(3/7)*x = 9/2
1/2 = (2/5)*x
d/4 = -21
d/4 = -23
| 3/7x=9/2 | | (7u+10)-(3u-10n)= | | 20y+10x=240 | | m+3m=8 | | 1=60tan(5x+8)-9 | | 1/2=(2/5)x | | -21x^2+58x-21=0 | | 3x-47=8 | | 42=P+(-25) | | -12r^4/3r= | | f(x)=(8x)/(5x-25) | | sin(31x)+sin(32x)+sin(33x)+sin(34x)+sin(35x)= | | 0.3m+0.15m=1.5 | | d/4=-21 | | 2/5x-15=58x-16 | | d/4=-23 | | 106-10= | | X^3-4x^2=12x | | 2y+9=7y-1 | | 4x^2+8=3x^2+71 | | 3k^2-18k+22=0 | | (7+19)+33=59 | | y-4=3y+8 | | -72*x^2+640*x-160=0 | | 5-5(2+7k)=-32-8k | | y=x^2-16+64 | | -5(a+1)+3=0 | | http://youtu.be/7KDUFiy53KE | | 6x+5=x-7 | | 6x+5=x-7+1 | | 3y-2=2y+7 | | (7+19)+0=59 |