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解:解方程, 此方程的解为x = 2/53
12x + 8 = 8x × 4 × 7
12x + 8 = 8x × 28
12x + 8 = 224x
224x - 12x = 8
212x = 8
x = 8 ÷ 212
x = 8 × 1/212
x = 8/212
∴x = 2/53
答:此方程的解为x = 2/53
12x + 8 = 8x × 4 × 7
12x + 8 = 8x × 28
12x + 8 = 224x
224x - 12x = 8
212x = 8
x = 8 ÷ 212
x = 8 × 1/212
x = 8/212
∴x = 2/53
答:此方程的解为x = 2/53
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