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1;20;11;20;7;8
15-x = -15;x
x
51;50;-3;-10;0;0
(1/4)*x^4-(8*x^2)+3 = 0;x
x
2;25;6;100;3;2
| 5M///9=3 | | (2x+5y)(x-2y)=0 | | 5c+7d=87 | | 12x-54=71+7x | | 7x-3y=168 | | 6(n+2)+9=5n | | 0.2a-42=29+0.1a | | 0.5y+16=-0.125y-4 | | -4(x)=x^2-3x+9 | | 3a^3+a^2+5a=-7 | | 49x*x-9=0 | | 3a^3+a^2+5a+7=0 | | 24-0.25x=-0.1x | | -12x^3+25x^2+31x+6=0 | | y=11.5*1.428571429+0.5 | | 5x-1-6x=-11x | | 9x+20=-90-x | | 7x/10*40/100 | | 20+0.5x=x-90 | | 2a+4=6a-6 | | (2x-1)(2x-1)=7 | | 60-p=p-160 | | Tn=6n+2 | | 20-5x=-3x | | 4x-15=2x-2.4 | | y=8*1.428571429+1 | | 8w-2=-3w-13 | | 8x+1=11.5x+0.5 | | 2(-3x+8)=28 | | 21+3y=-64-2y | | 200+2s=s+119 | | 3m-3=-1.8+2m |