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Q.

The solution of 5x + 7 = 2x – 8 is x = [[1]].


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answer is -5.

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Detailed Solution

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The solution of 5x + 7 = 2x – 8 is x = -5.
The linear equation is given as follows,
5x+7=2x−8
We first subtract 2x from each side of the above equation and simplify as follows,
5x+7−2x=2x−8−2x 3x+7=−8
3x+7−7=−8−7 3x=−15 3x 3 = −15 3 x=−5
Therefore, x=−5 is the solution of 5x + 7 = 2x – 8.
 
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