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13.07;2.5
15;62.5
2.92;2.55
15;62.5
x^2-y^2-76;x-y-26
| -6+20=0 | | (6x+21)+(3x+14)=180 | | 3x+4y=27.60 | | 16(x^3y)^2/2(xy^0)^4 | | 3w^2+8w=26 | | 2x-17=9x+6 | | -8/3=x/4-5/12 | | 9x+13(3)=84 | | P=2(11+50) | | 15x+4=27 | | 18+(x-8)+(x+2)=180 | | f(x)=2tgx-ctgx | | 74+5x+(2x+8)=180 | | h(x)=(x-4)(x-2) | | 21p+19980=-987 | | 25+6x+(5x+1)=180 | | 10a+2b-ab=0 | | Ln(x)=-5 | | 9x+2(8)=124 | | z^2+12z=146 | | Ln(x)+ln(x-2)=-1 | | 0.8=3/x-3 | | 2a+2b-ab=0 | | X*3+131=x*13-9 | | 2(x+4)-3=100 | | 37-15=6 | | (-5n^4+8)+(5n^4+8n^3+3n^2)=0 | | 4(2x+1)=10x-1 | | 4-3/5y3 | | 8-5p=2-3p | | (3x^3+4x^2)+(3x^3-4x^2-9x)=0 | | -x+1+3x+1=3 |