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(42/4)/3 = 0
21/2/3 = 0
7/2 = 0
L <> R
| 7x+11y=100 | | (9/y+1)=(18/54) | | x+3x+15=121 | | (R/21)=(3/63) | | 3a+7=5 | | (4/6)=(8/r) | | (R+1/4)=(3/4) | | 53t=477 | | m/17=14 | | k+32=48 | | (0.1/2)=(0.5/r) | | 4*x*3=3 | | (1/t)=(5/3) | | (-3/x)=(2/8) | | 9k/17+8=161 | | 14x/9-1=125 | | q/8+1=5 | | 23x+11y=2 | | t*15-5=40 | | m*9+3=30 | | q-9=17 | | 7(v+4)-3v=2(2v+4)-15 | | 2.5(b-12.4)=19 | | 0.45(12)+0.05x=0.15(18+x) | | (8)+(-4)+(-7)+20= | | (3X-48)+156=180 | | 17(a+8)=190.4 | | 12x^2=5+4x | | 5c^2-5c-25=equation | | x-2/3=2x+1/4 | | 8x-3=4x+-17 | | (2X-5)+75=185 |