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0.5*x+0.4*y-27.6;0.6*x+0.25*y-27.6
2*x^3+x^2-3;x+4
3*(1-x)+2 = -7;x
x
457;315
0.5*x+0.4*y-27.6;0.6*x+0.25*y-27.6
| x^2-146x+160=0 | | 8+4y=11y | | 7s+25=165 | | 2x(2x)+x=21 | | 16u-7u=54 | | 4(y+1)=-3y-3 | | 6a+4a=8a-1 | | 0.25=N/4 | | h=-16t^2+96-80 | | 1+4x-6=4x+1 | | 7-x/6=5 | | 7(4.9+x)=56 | | 10x−8/3−4x=6x | | 2n-13=8+n | | ln(1/5)=1-3x | | 52=5n+7 | | 3-/x4=-11 | | 9*4a=3*4-4a | | 87-3x=60 | | 7y-6=5(y-2) | | 5y+4y=16 | | 15/25=x/17,100 | | 15/25=x/17100 | | 7y+x=3 | | 7x-2/3y=-51 | | 8x-3x+2x=11-3x | | 5(21/2) | | -16t^2+46+10=0 | | 6(2n+7)=7n+12 | | 2(w+8)+2w=68 | | R^34=200 | | 2x^3-30x^2-5=0 |