exam Maths Puzzle Numerical Ability

if m(-11,13) is the idpoint of segment PQ and the coordinates od P are (-6,6), find the coordinates of Q.

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exam Other Question

Let g be a linear function. If g(1)=3 and g(-4)=c, find the value of the constant c such that the line will have a slope equal to -1.
Also, could you solve this one?
12x-45=-{48-12x+3}
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