1/8x+1/12x(9-x)=1
2个回答
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解:解方程,此方程的解为x = 6
(1/8)x + 1/12 x (9-x) = 1
(1/8)x + 1/12 × 9 - (1/12)x = 1
(1/8)x + 3/4 - (1/12)x = 1
(1/8)x - (1/12)x = 1 - 3/4
(3/24)x - (2/24)x = 4/4 - 3/4
(1/24)x = 1/4
x = 1/4 ÷ 1/24
x = 1/4 × 24
∴x = 6
答:此方程的解为x = 6
(1/8)x + 1/12 x (9-x) = 1
(1/8)x + 1/12 × 9 - (1/12)x = 1
(1/8)x + 3/4 - (1/12)x = 1
(1/8)x - (1/12)x = 1 - 3/4
(3/24)x - (2/24)x = 4/4 - 3/4
(1/24)x = 1/4
x = 1/4 ÷ 1/24
x = 1/4 × 24
∴x = 6
答:此方程的解为x = 6
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