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4;5;6;7
11-(x/15) = 13-(x/5)
5;7;3;15
11;15;4;15
2;15;3;5
| 4x+6z=3+5y | | 3+x-1=2 | | i^45= | | y=x^2+13 | | (2-2y)*(4+(4*0.075))=8 | | 3x+5=12+6x | | 8-5x=15-2x | | 11-x/15=13-x/5 | | u^2-36=0 | | abc+ab=20 | | 7a-3=3-a | | 5xy+sd=3 | | 2x-6*(x-1)=7+2(x+2) | | 6x^2+49x+49= | | 3+-7x=-7x+3 | | 3+-7x=3x+-7 | | -6x+15=x+5 | | -12+18x=3x+3 | | 6x^2+6x-44=0 | | z^15+iz^2=0 | | 17xsquared(3x+4y)= | | 8x/3=11 | | 12+6*-3= | | 16x+2x-5x=91 | | ln(x)+2x+1=0 | | 5+-3*2-12= | | 4(4x+5)=3(5x-2)+22 | | 8H+132=540 | | -11+6x=6x+13 | | 5x-5+2x=6x+6 | | 3x^2-260x+1200=0 | | 8.5y=144.5 |