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(-20*(27/30))/30 = 0
(-20*9/10)/30 = 0
-18/30 = 0
-3/5 = 0
L <> R
| k-3k=-6k+5-8k | | z=1x+1y | | 27/30X-20/30 | | 1/4(4-2m)-4/5(3-m)+7 | | x+3x-5=2x+8-7 | | 5(-1x-10)=-52 | | 1z=1y+1x | | 5(10+6)=8(10) | | 31.3+23.4(x)=188 | | 12(x-2)= | | 2x-7=83-8x | | x-5+22=180 | | 7n+3=0 | | 5x-10+4=3-4 | | -2(8m+8)=-16 | | 84.61=4.1x-3(6x-5.5) | | (b+2)(3b+8)=0 | | x/2-(-17)=11 | | 22/9-3/3 | | 1-8b-7=18 | | -30/35-9/35 | | -36+2w=-8+1w | | -2(3+5x)=-6 | | .6x-.4=.5x+6 | | -24/25+32/25i | | 3/5(t+4)=1/4(2t-6) | | (7b+2)(b+3)=0 | | -195=-6(3n+8)-3 | | 4/18+(-9/18) | | 19+x-50=180 | | X+7=3(x+4)-x | | 19+x/50=180 |