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73;21
348;4
5;1;1;2;0;0
20*x+140 = 250;x
x
x^3-(2*x^2)+1 = 0;x
x
| 3x-4=30(x+14) | | 5x-(7)7=(-10)+(8) | | 3X+2+10=0 | | 120/x-480/5x | | 7-7x=9x-10x-41 | | (-9x)+(6)=(-x)+(4) | | 5y-(2y+3)=13 | | 2.9=1.1*1.1/1.43*x-1. | | -17/6/-1 | | 3/7=6/14 | | 2.9=1.1*1.1/(x-1) | | 2.9=1.1*1.1/x-1 | | 2.9=1.1*1.1/x-1. | | -5/6-2 | | 3k^2+2k-5=0 | | L^2-2L-20=0 | | (2x)+50=180 | | (3)-6a=9-(5a) | | (-9x)+6=(-x)+(4) | | -(x+7)=(-6x)+8 | | 6x-9x-(4)=(-2x)-(2) | | -3x+5=4-8x | | 5k-(3k+2)=14 | | (-3x)-4=(-2x)-2 | | N*5/8=5/8 | | 9h+9=36 | | =12x^2+44x+7 | | 8x-9=21+5z | | =12x^2+44+7 | | 6a=10+14 | | 6x-9x-4=(-2)-2 | | 3(X-Y)=7-Y |