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8/10 = 12/45
4/5 = 4/15
L <> R
| 6x-9=5x-13 | | 14b^2+10b=0 | | (f+12)(f-15)=0 | | -4(4x+7)+9= | | .3x-.27=.36+.52x | | 91/12=k/9 | | 4x^2+16x+64=129 | | 11/4×8= | | 7y+8x=15 | | 4(x-4.2)=8.6 | | 3x-p=0 | | log(y)=1.2+0.8log(2) | | .3x+.25=.65-.1x | | 3b^2+24b=0 | | 1650=-275(t-6) | | n=4n+4w | | (f-10)(f-12)=0 | | x^2-90x=-180 | | 2u-1/11=-7 | | 24.15=8a-4.5a | | 43.46=-8.2w | | 4.6-8m=0.6 | | 1/y=2.8 | | -2b(b-10)=2(10+5b) | | 16y=3/4y-8 | | 7T-19t=96 | | 4x+1=486 | | 3n^2+n=24 | | 5n+3+2n=21 | | (f+1)(f-8)=0 | | 6x^2-348=0 | | w=-275(t-6) |