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4/20 = 2/13
1/5 = 2/13
L <> R
| (9x^2)-45x=0 | | (X+5)2-2x=80 | | 5-7/x=18/5 | | -8x+9+9x=-1+22 | | 7ax-7x= | | x-1/5=14/5 | | 4m+7.5=2m-3.5 | | X-7=-1-9 | | 4/3y=12-x | | y=x^2+4z-5 | | -14=0.005x^2-0.666x+2.795 | | 17+2x=67 | | 70.4xm=30.6 | | a^2+2a-10=0 | | 5m-3=2m-3.5 | | 7y-2+4x+1=9y+3x | | x*2+x*2+x= | | (1/7)/(1/42) | | X-7=1+9 | | 8-5q=8q-32 | | -2(k+5)=-7 | | 1/7/1/42 | | a^3-3a+20=0 | | (15+x)+75+x=180 | | -3(-1x+4)=-3 | | (j-3)(4j-3)= | | x+8=-4x+13 | | -2(-5x+1)=38 | | -5(4x+5)=-265 | | 4(y-9)= | | 43x+-3x= | | 3(-2+5x)=84 |