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Question
The solution of the equation 3x + 7 = –20 is ______.
Options
`17/7`
–9
9
`13/3`
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Solution
The solution of the equation 3x + 7 = – 20 is –9.
Explanation:
Consider the given equation 3x + 7 = –20
Transpose 7 to right-hand side then it becomes –7
3x = –20 – 7
3x = –27
x = `-27/3`
x = –9
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