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Answer :
We have: x – 2 = 7
⇒x – 2 + 2 = 7 + 2 (adding 2 on both sides)
⇒ x = 9
Check:
Keep x=9 in the given equation:
L.H.S= x-2=9-2=7=R.H.S
Hence we have x=9 as the solution.