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प्रश्न
If 7x + 4 = 25, then the value of x is ______.
उत्तर
If 7x + 4 = 25, then the value of x is 3.
Explanation:
Given, `7x + 4` = 25
⇒ `7x = 25 - 4` ......[Transposing + 4 to RHS]
⇒ `7x` = 21
⇒ `(7x)/7 = 21/7` ......[Dividing both sides by 7]
⇒ `x = 21/7`
⇒ x = 3
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