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76;4
a*k+b*l-x;c*k+d*l-y
3*x^2+12*y;12*x+2*y;2*z+2
81;3
4;5;9;10;1;0
| 3ax+6-4(x+b)=11+14 | | 52x+x=360 | | 7x+11=3x+51 | | 7x+2(3+x)=12 | | 200m-125+48500=50750-175 | | 117+x=360 | | x(x+2)=10x+140 | | 90+x=360 | | 45+2x+3x=4x+7x+15 | | 12x-2x+56=12x+32 | | (-5+1)(25x^2+5x+1)= | | C=3/4 | | X=82 | | (X+6)(X+6)=33 | | X-24=54 | | 2tanx=3+cotx | | 108+x=360 | | 45+x=360 | | 109+-3=73 | | 145+x=360 | | 170+x=360 | | 13x-8=2+5x | | -58=-2y | | -x^2-(k+7)*x-8=-(x-2)*(x-4) | | 3ax+6-4(x-b)=11b+14 | | -x^2-(k-7)=0 | | 5x+6(-2x+13)=1 | | x^2+y^2-12x+16y+100=0 | | 9y-11=43 | | 6x^2+1=25 | | X+x+2x+7+7=5+5+3x+3x | | x^2+y^2-12x+16y+200=0 |