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cos(5)
1;4;3;5;12;13
2006;608
4*x+3*y-14;6-2*x-y
200;171
| 5.5+1.8x=19.9 | | 8x-4(x+2)=12(x+1)-14 | | 467=d+-482 | | 2y=12-7 | | 0.2x^2-0.8x+4.2=0 | | 11.4+x-8.3=3.9 | | 3(4c-10)=6(2c-5) | | 9c=17c-24 | | (2x^7+7x^4+6)-(2x^4-x)= | | 8x-2(4-x)=6 | | 11.1+x-8.3=3.9 | | x-10/25=-3 | | 0.8x^2+3x+2.1=0 | | 0.2(v-5)=1 | | 2.3+x=0.9 | | 68-y=180 | | a^2-4=18 | | 5(2x+4)=4+8x | | 10-3+15=x-3 | | 4(2-x)=7(2x+1)-17 | | 25.1=2(3.13)r | | 8(2x+9)=104 | | 25.1=2(3.12)r | | x-18=-43 | | 4d+7+2d=2(3d-7) | | -16+7=x+9 | | w+49=7w+1 | | 3b+8-5b-13=6b-7+b-25 | | (7x^5+6x^3-3x+2)-(4x^8+3x+5)= | | -17+x-5=10-15+1 | | r+5t+4t-7=17 | | BC=3x+6 |