exam Maths Puzzle Numerical Ability

Solving Linear Systems:
Use linear combinations to solve the system of linear equations.

3p - 2 = -q
-q + 2p = 3

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exam Other Question

I need some help with a few natural logs. Solve the natural logs.

4ln x - ln 2 = ln 128

ln 3 - (ln x + ln 6) = ln x - ln 8

ln 3 + ln 2x = 7


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an amusement park purchased equipment form a manufacturer for $42,000 minus trade discounts of 30/20/15.

Show me how to caculate the trade discount on the purchase. Please.