exam Maths Puzzle Numerical Ability

Given A = 7 (neg) -2 1
3 5 0
-1 4 (neg)-6
I say neg becaues it is not minus the #
and B =
2 (neg)-3 neg -4
6 0 neg -2
-5 1 3
, find A + B.

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exam Other Question

Write the equation of the line L which has y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 the supplement of an angle is equal to one-half of the angle. Find the number of degrees in each angle.