When you subtract 10 from thrice a number, the result is 17. Find the

Question

When you subtract 10 from thrice a number, the result is 17. Find the unknown number. [2 MARKS]

Answer:
:
Framing the equation: 1 Mark
Result: 1 Mark
Let the number be y
Then,

3 y - 10 = 17

\Rightarrow 3 y = 17 + 10

\Rightarrow 3 y = 27

\Rightarrow y = 9

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