Answer:
NO, it isn't
Explanation:
To check it you just need to put 3 in place of t and if you get true equation then t=3 is a solution. If you get false then isn't.
2×t - 8 = 7
2×3 - 8 = 7
6 - 8 = 7
-2 ≠ 7 ⇒ t=3 is no solution
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