Question

# Solve and check result:

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Solution

## Multiplying both sides by 5, we obtain 5x = 4(x + 10) 5x = 4x + 40 Transposing 4x to L.H.S, we obtain 5x − 4x = 40 x = 40 L.H.S = x = 40 R.H.S = = L.H.S. = R.H.S. Hence, the result obtained above is correct.

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