2024 SAJC H1 Q1

Last year, a company sold three brands of laptops: Azer, Lenoao and Samsng.

In July, the sales of the three brands of laptops were recorded as follows:

1. The total sales of the three brands of laptops was \$ \(159\,000\).
2. The sum of twice the sales of Azer laptops and thrice the sales of Lenoao laptops was \$ \(374\,000\).
3. Four times the sales of Samsng laptops was \$ \(10\,000\) less than the sale of Lenoao laptops.

Write this information as three linear equations. Hence find the sale of Lenoao laptops in July.[4]