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35÷5×a=49
45÷9×b=40
(c+4)×(d+3)=48
(2+e)×(5+f)=63
(g+4)×(h+3)=48
28÷i×9=4×9+2×9
j÷6×8=6×6+2×10
22×2+k=12×2×3
52÷2+l=52÷2+99÷9