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75/100 = x/28
u-(2/5) = 16/3
w-(4/5) = 35/4
x-(1/3) = 3/4
(2/3)*x-(7/6) = 7/2
| 45+5y-8=14y-12-2y | | -10x+57=-12x-31 | | 75/100=x/28 | | 7c+5=32 | | X+2x+x+4=32 | | 16squared(t)=1600 | | u-2/5=16/3 | | N=n-nt | | 40-y=4 | | 5(3x+2y)+4y= | | f(x)=x^3+3x^2+2x | | a(a+3)+a(a-6)+35=a(a-5) | | w-4/5=35/4 | | 3+-3x-5x^2=-2x^2-3 | | 18w=90 | | 8(3x+10)=24x-4 | | (-2u^2+7u-1)+(4u^2+6u+5)=0 | | -.5x+2=-1+5 | | 4v+3v=28 | | x-1/3=3/4 | | 25x^2+40x+28=0 | | 6w+3(4w-2)=4w+2(6w-3) | | 90+(x+5)=180 | | 9x+14=6x-24 | | 9x+7=9x-9 | | 9.5g=28.2 | | (x-30)+(x+50)=180 | | -7c+5=32 | | 1/8×64 | | D=7pieh | | 2/3x-7/6=7/2 | | 90+(2x+-2)=180 |