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31*x+45*y-14.5;36.5*x+36.5*y-14.6
1*x^4+3*x^3-(8*x^2)+3*x+1 = 0;x
x
3*(x+3) = 2*(x+4)+x+1;x
x
x-(10*x)-9 = (13/2)*x;x
x
3*(x+3) = 2*(x+4)+x+1;x
x
| 7s-12=100 | | 0x=-26+13y | | 5u-13=97 | | 3+6x=x+-4 | | 0-10y=10 | | 2a+3=30 | | -5n-8=-n | | 6w=2w+8 | | 5r-10=90 | | 2g=7+3g | | -21-(-5)+(-8)= | | 0-6y=-3 | | -0.55x-6=0.45x | | 8t-11=61 | | 80-3k=5k+3k | | -x^2-6x+0.25=9.5 | | 4x+21+7x=2x+47 | | 8.25t+4=19.5t+13 | | 8t-11=121 | | 28+-9m=6+2m | | 10-6=6+7 | | 7q-13=71 | | y=250x | | 3+6x=x+14 | | 79-13=50 | | 52=9.75x+3.25 | | 7(x+3)+6=3x+4(-5+x) | | 8x+48=4x-16 | | sin(x)=1/3 | | 7k-5=100 | | x+5.5+4.5= | | 25=-8+9x |