exam Maths Puzzle Numerical Ability

hello,

how to solve by graphing:

2x - 3y = 12
3y - 2x = -12

thank you.

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exam Other Question

solve the equation if possible.
15/x -4= 6/x +3
i can not figure out how to do this. will you please help thanks Find the distance between each pair of points -3,0 and 4,0