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प्रश्न
The solution of the equation 3x + 7 = –20 is ______.
रिकाम्या जागा भरा
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उत्तर
The solution of the equation 3x + 7 = –20 is –9.
Explanation:
Given, 3x + 7 = –20
⇒ 3x = –20 – 7 ...[Transposing +7 to RHS]
⇒ 3x = –27
⇒ `(3x)/3 = (-27)/3` ...[Dividing both sides by 3]
⇒ x = –9
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