Sima has written a number. If 2 is added to twice the number, it becomes 5 less than thrice the number. Let’s write the numbers that Sima has written.
Let the number be x
2 is added to twice the number is 2x + 2.
5 less than thrice the number is 3x – 5
So,
2x + 2 = 3x – 5
Solve it,
2x – 3x = - 5 – 2
- X = -7
X = 7
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