exam Maths Puzzle Numerical Ability

solve using cramers rule:

2x-3y-3z=25
3x+1y-1z=-5
5x-2y-4z=32


I am very confused with this problem...please help!

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exam Other Question

Graph the equations:

2x+y=5
ABCD is parallogram. If the two diagonals are equal,find the measure of angleABC