Question
6x + 5 = 2x + 17

Answer

We have
6x + 5 = 2x + 17
Transposing 2x to L.H.S. and 5 to R.H.S., we get
6x - 2x = 17 - 5
4x = 12
Dividing both sides by 4, we get
$\frac{4\text{x}}{4}=\frac{12}{4}$
$\text{x}=3$
Verification:
Substituting x = 3 in the given equation, we get
6 × 3 + 5 = 2 × 3 + 17
18 + 5 = 6 + 17
23 = 23
L.H.S. = R.H.S.
Hence, verified.

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