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3;4;12;1
-4000/(x^2)
-140;14;-140;-10
b*((2*b-(7*y))/3)-(b*((9*b-(4*y))/3)) = 0
(3*(2*r-2))/7 = 3*r-(6/2)
| X^2+6x-7=y | | 6-3=4z+5 | | 57-(4x+11)=4(x+7)+x | | 6(0)-5y=15 | | X-21=83 | | N+(N*2)=33 | | 9x-6=7-2x | | 6(-1)-5y=15 | | 3+4[3-2(x-5)]=3(x-2) | | 4x+(7/4)=5-(7/4) | | 10x^2*4x= | | ((2*b-7*y)/3*b)-((9*b-4*y)/3*b) | | 90-15= | | 8(4k-4)=(-5k-32) | | 5k^2-11k+2=0 | | 10x*4x= | | 105/2= | | ((2b-7y)/3b)-((9b-4y)/3b) | | (2/7)x+(4/7)=-(4/7) | | 160+130+390+x=1000 | | 13(a-4)=-8-5 | | 36/216 | | 3(2r-2)/7=3r-6/2 | | (15x^12y^6)/(-3x^7y^3) | | 10x+4x= | | 4/5=80/x | | (X^2/6)-4 | | 6(s-2)+3=3s+15 | | .20=(x/6.2)x | | z^2+(2i-3)+(5-1)=0 | | -56+8*-6= | | 5x-8x+49=2x+29 |