
3分之4x+12分之5等于3乘12分之7(解方程)?
2个回答
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解:解方程,此方程的解为x = 1
(4/3)x + 5/12 = 3 × 7/12
(4/3)x + 5/12 = 21/12
(4/3)x = 21/12 - 5/12
(4/3)x = 16/12
(4/3)x = 4/3
x = 4/3 ÷ 4/3
x = 4/3 × 3/4
∴x = 1
答:此方程的解为x = 1
(4/3)x + 5/12 = 3 × 7/12
(4/3)x + 5/12 = 21/12
(4/3)x = 21/12 - 5/12
(4/3)x = 16/12
(4/3)x = 4/3
x = 4/3 ÷ 4/3
x = 4/3 × 3/4
∴x = 1
答:此方程的解为x = 1
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