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7;16;1;6;0;1
9;16;8;25;1;0
2;5;8;15;2;1
12/21 = 56/x
(1/4)*pi
| 2x^2+1=3-x | | 7n-n=18 | | (-4x^3+10x^2-7x+5)+(7x^3+6x^2-8x-3)= | | [2x+x^2]=1 | | Y=1.25x+30 | | 4(4x-(7-4y+5x)+3y)= | | 2zy/y=14/y | | 2ab/21xy*14xy | | 5(x-2)=-(x+6) | | 2(x+-14)+3(3x+5)= | | 3x+14=4x-6 | | 4/5x3/5= | | 7n-23=-25+5n | | -1/2x=32 | | -x-12=-7x+3x | | 8a+8b-2a= | | 6(6x-6)+5=-31 | | -2(1+6n)=10 | | X^2-12+3=0 | | -21z^6+49z^4-9z^2=0 | | 5z-17=-9+6z | | 4g(-1)= | | y+4/y-1=-4/3 | | -9m+69-6m+12=5m-2m-7-4m+4 | | -6x-3(-2x-1)=-15 | | x+5=1/3(6x-5) | | 6+k-7-1=-8+3k | | 7x+6=-2+7x-4+7x | | 8[5-(6x-7)]+8x=0 | | -48-34= | | -257=-6(-5-7x)-x | | X=450+-5x |