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4^x
(4-x^2)/((2-x)^2)
2-(6*6)+3
3*x-(2*y)-1;4*x+5*y-2
2-(6*6)+3
| 7=(x+6)(x+12) | | 0.4[0.5-(0.6)(0.7)]= | | 2(x-10)=350 | | 2(3y+2x)-7=0 | | 7(8-4)=20 | | 5-9y=41 | | -.25(-16x-4)=13 | | -92x+40=3x-5 | | X=65/5 | | 2x+39=5x-9 | | =6(3x+8)+32+12x | | -9x-138=-8x+5-12x | | 5x+43=-7x-5 | | F(x)=180-5x | | 3x+2x+x=60 | | 3y-7=16y+45 | | 2.1x+2.4=3.6x-0.6 | | 3z-2=z+8 | | y=8x^2-6x | | -48=6(m-10) | | 5p-9=13 | | 2x-(10-x)=-1 | | -1.5/-3.0 | | 2(x+3)=2x+12 | | 4(-8w+-9)+-8= | | -3.0/-1.5 | | 9n+22-11n=42 | | A(XB+P)=U+J | | X-27/14=8/7 | | -10n+12+8n=22 | | 10x-4=25+5 | | 10x+4(5x+4)=-9 |