Đáp án :
`a) 2x - 5 = 6`
`2x = 6 + 5`
`2x = 11`
`x = 11 : 2`
`x = 11/2`
Vậy `x = 11/2`
`b) (3/2 x - 5)^5 = 32`
`⇒ (3/2 x - 5)^5 = 2^5`
`⇒ 3/2 x - 5 = 2`
`⇒ 3/2 x = 2 + 5`
`⇒ 3/2 x = 7`
`⇒ x = 7 : 3/2`
`⇒ x = 14/3`
Vậy `x = 14/3`
`c) x/5 = 2/3`
`⇒ x . 3 = 5 . 2`
`⇒ x . 3 = 10`
`⇒ x = 10 : 3`
`⇒ x = 10/3`
Vậy `x = 10/3`
`d) 10^x = 100`
`⇒ 10^x = 10^2`
`⇒ x = 2`
Vậy `x = 2`
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