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13*n = 1/5
85 = (1/2)*(226-4)
4*x^4-(18*x^3)+37*x^2-(60*x)+52 = 0
68/100 = x/15
(12-x)/(-27) = -19
| 14.5=3x+2y | | 3+x^2-9=40 | | x+x^2=a^2+2ab+b^2 | | 8+2=16017 | | 4=92 | | 13n=1/5 | | 2x-5(x-4)=-6+3x-22 | | X*5=-45 | | 48=4(2x+4) | | 3x-24=2(4x+3) | | -18=3(4x-2) | | -9y=24 | | 0.13(x+3000)=6760 | | 2(2x-4)-3=2x-29 | | 85=1/2(226-4) | | 2(5x-1)-(2x-5)= | | 2y=42x-8 | | 68/100=x/15 | | 3(2x+1)-1=-10 | | x^2+4y^2=164 | | 4x+3+x+8=90 | | x^2+4y^2=- | | 9=-7 | | 12x+16y=488 | | (x+1)(x^2+kx+4)=0 | | -2x-14=-18 | | 3w+4+5w=12 | | 2.10+11.70=m+0.80 | | 11x+27=5x+75 | | 8x-5=-2x+10 | | -x+23=17 | | 13x=12x+3 |