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21;20;115;16;0;0
77/s = 132/48
X/4 = 80
8/t = 840/210
A/5 = 105
| 77/s=132/48 | | -x^2+x-18= | | X/4=80 | | 0.7x=0.864 | | -4(4y-5)+3(3y+5)= | | 8/t=840/210 | | 9p=96 | | 2x^2-3x+.05=0 | | e^4=y | | 250y-y^2=10000 | | A/5=105 | | y/493=228/116 | | 664/996=r/12 | | N/2=33 | | 15n-125=175 | | 4x-3y/8z | | 1=3-d | | 28/42=y/12 | | 12/14=t/42 | | X/8=-1 | | X=16.50-(3.25+1.75) | | 3x^2-6x+4x+4=3x^2-3x-6 | | 3n+n=165 | | x/87/2 | | 12/15=y/35 | | Y/8==-96 | | 6(11x-10)/512 | | x+7.1=10.6 | | 10=32t-5t^2 | | 4x+2(x-6)=10x-36 | | 4.75=a-1.50 | | 2/9-3/4 |