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20;30
7.2;5.16
(13/4)*x+(1/2)*y+(3/8)*z-1.875;(1/2)*x+y+(3/8)*z-11;(3/8)*x+(3/8)*y+(3/16)*z-(-44/3)
3.4;12.66
(x-2)^2-2-1+1 = 0;x
x
| 1.5-0.03x=-0.84 | | x^-2/3=81 | | y=3ax^2-75a | | -5(t-5)+7t=9t-1 | | x/1-5/10 | | a=1635+-2b | | D^2-2d=63 | | -9=y+-7 | | -2b+7-3=2 | | x/1=5/10 | | 2-2f=9 | | a+58+2b=1693 | | x^2-12.5x+13.5=0 | | G^2-4g-12=0 | | 4(6h-4)=8 | | -20+5x=36+-2x | | y=-16t^2+40t+5 | | -15+x=4y | | 10v=140 | | X^3-8x^2-25x=0 | | Mm-9=-19 | | -1x+89=109-5x | | 2.5+0.67+n=0.167 | | 10x^3-10000=0 | | 10x^3-32=0 | | 1.5(-3.2+2.5)= | | 10a+9=109 | | 5p+4=2p+31 | | 10j+5=55 | | 4.23=1.5d+3.2d | | 4e(x+1)=16 | | 9u+9=81 |