
(1-9/2)x=49怎么算?
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解:解方程, 此方程的解为x = -14
(1 - 9/2)x = 49
x = 49 ÷ (1 - 9/2)
x = 49 ÷ (2/2 - 9/2)
x = 49 ÷ (-7/2)
x = 49 × (-2/7)
x = 7 × (-2)
∴x = -14
答:此方程的解为x = -14
(1 - 9/2)x = 49
x = 49 ÷ (1 - 9/2)
x = 49 ÷ (2/2 - 9/2)
x = 49 ÷ (-7/2)
x = 49 × (-2/7)
x = 7 × (-2)
∴x = -14
答:此方程的解为x = -14
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