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方程X-6÷9/2=1/2 x - 6x 2/9 = 1/2x - 2 x 2/3 =1/2x - 4/3 = 1/2 x = 4/3 + 1/2 = 11 / 6簡算3/4÷5/3+3/4×2/5= 3/4 x 3/5 + 3/4 x 2/5= 3/4 x(3/5 + 2/5)= 3/4施主,我看你骨骼清奇,器宇軒昂,且有慧根,乃是…
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