1 30*4 = 120 156-120 = 36 36/3 = 12 30-12 = 18 2 300*7 = 2100 2500-2100 = 400 400/100 = 4 7-4 = 3 18*4 = 72 88-72 = 16 16/2 = 8 18-8 = 10 46+3+5+3/3 = 19 19-3 = 16 19-3-5 = 11 40/1+3 = 10 10*3 = 30 24/(5-1) = 6 6*5 = 30 28/(3-1) = 14 14-2 = 12 56/7+1 = 7 7*7 = 49 12/(3-1) = 6 6*3 = 18 9y+138 = 300 9y = 162/9 = 18 5x+27 = 132 5x+27-27 = 132-27 = 105/5 = 21 x-5 = 12 x = 12-5 = 7 100+y = 143 y = 143-100 = 43 1280+7x = 2540 1280+7x-1280 = 1260/7 = 180 55y = 660 55y = 660/55 = 12 12y-95 = 85 12y-95+95 = 180/12 = 15 (y/0.8)-8 = 12 y/0.8-8+8 = 20*0.8 = 16 (x-2)/6 = 3 x-2/6*6 = 3*6 = 18+2 = 20 (45+x)/5 = 12 45+x/5*5 = 12*5 = 60-45 = 15 500-75y = 200 500-75*4 = 200 (x+180)*2 240+180*2 = 840 478+x = 700 x = 700-478 = 222 3.8x = 323 x = 323/3.8 = 85 |
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