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| 2x+3(2x-1)=-27 | | 21x+46=88 | | -2(4x-3)+3(3x-7)-5=2-9 | | x-5+2(x-4)=3(x+1)-5 | | .83x=29.16 | | 7+ax=15-bx | | -8x+7=23 | | 38x^2+37x-1=0 | | x^2+y^2-z^2+4=0 | | x=8+-1y+-1z | | 1c/45 | | 2x+15=7+4x | | 7=k-10 | | -x+15=-12 | | (7x-6)-(4x-10)= | | 52x+2=35x-1 | | -4(-4u+4)-4u=4(u-8)-2 | | X+X*0.5=6000 | | 72x^2+36x-8=0 | | 4x-30=1 | | 5N+25=3N+30.76 | | 93.96=4.7p+8.7p+2.6p | | 60=x+15 | | X+X*0.5=1000 | | v+w=11 | | 68x=48x+90 | | 12x^2+30x-72=0 | | (-8x+6)-(7x+12)= | | 2(36)+2(w)=132 | | 8(x-7)=-88 | | 62=(x+20)+(22x-4) | | -y+y+(4y-y)= |