
x+3分之1=9分之7解方程?
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解:解方程,此方程的解为x = 4/9
x + 3分之1 = 9分之7
x + 1/3 = 7/9
x = 7/9 - 1/3
x = 7/9 - (1×3)/(3×3)
x = 7/9 - 3/9
∴x = 4/9
答:此方程的解为x = 4/9
x + 3分之1 = 9分之7
x + 1/3 = 7/9
x = 7/9 - 1/3
x = 7/9 - (1×3)/(3×3)
x = 7/9 - 3/9
∴x = 4/9
答:此方程的解为x = 4/9
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