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Question
If 7x + 4 = 25, then x is equal to ______.
Options
`29/7`
`100/7`
2
3
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Solution
If 7x + 4 = 25, then x is equal to 3.
Explanation:
Given equation is 7x + 4 = 25
⇒ 7x = 25 – 4 ...[Transposing 4 to RHS]
⇒ 7x = 21
On dividing the above equation by 7, we get
x = 3
Hence, the solution of the given equation is 3.
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