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218.34*x+70*y-906.25;70*x+87*y-450
e^(-10*x)
24 = (-6/7)*y
2/5-(6*i) = 0
(9*w)/8-2 = (11*w)/10
| -14(z+1)+5(4z-7)=5(z-5)+13 | | (m-n+k)(m+9n-7k)= | | 24=-6/7y | | x^2-xy=-36 | | 2(7x+8)-2x=2x+26 | | 5x+8+3-x+5=6x-3 | | 2x^5-2x^2-10=0 | | 5/6*10/7= | | .25(x+3)=2-a | | (2x+5)(4x^2+20+25)=0 | | 5x-10=8-2x | | 0=-16x^2+63x+92 | | 2t^2-15t+24=0 | | Z+7=z-5 | | 2/5-6i=0 | | 9w/8-2=11w/10 | | 4+x-12=-8 | | 5(x-3)-3=-3(-7x+7)-7x | | 25x+15=20x | | 8x-10=2x+6x-10 | | 4-3(3r-5)=0 | | .15x+6.5-.65x=2 | | 3(2p-5)=2(3p-2) | | -7y+4(y+4)=1 | | 2*2+b*b=6*6 | | 3b+2b-3=17 | | (2x)(2x-5)=52 | | 8(2x+6)=15x+13 | | 3x+9+3x=9+5x-6 | | 4x^2-10x-52=0 | | -18=-3+3u | | X-10x-10=6-9x |