又是一道方程,(0.03+0.02x)/0.03+(x-5)/2=(0.4x+0.9)/0.5 求x
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![又是一道方程,(0.03+0.02x)/0.03+(x-5)/2=(0.4x+0.9)/0.5 求x](/uploads/image/z/15103812-12-2.jpg?t=%E5%8F%88%E6%98%AF%E4%B8%80%E9%81%93%E6%96%B9%E7%A8%8B%2C%EF%BC%880.03%2B0.02x%29%2F0.03%2B%28x-5%29%2F2%3D%280.4x%2B0.9%29%2F0.5+%E6%B1%82x)
又是一道方程,(0.03+0.02x)/0.03+(x-5)/2=(0.4x+0.9)/0.5 求x
又是一道方程,
(0.03+0.02x)/0.03+(x-5)/2=(0.4x+0.9)/0.5 求x
又是一道方程,(0.03+0.02x)/0.03+(x-5)/2=(0.4x+0.9)/0.5 求x
(0.03+0.02x)/0.03+(x-5)/2=(0.4x+0.9)/0.5
(3+2x)/3+(x-5)/2=(4x+9)/5
两边同乘以30,得
10(3+2x)+15(x-5)=6(4x+9)
30+20x+15x-75=24x+54
20x+15x-24x=75+54-30
11x=99
x=9