exam Maths Puzzle Numerical Ability

Please help with this problem
The complex numbers 2/5xi + 3 and -4 - 1/4yi are equal. Find the values of x and y
Have tried solving as a regular equation but cannot find equal values.

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exam Other Question

Hello I need some one to help with this solution please. Last year ralph had $5 million in operation income. there was net depreciation of $1 million and interest expense of $1mill Solve (1 + i) / (1 - i)

Note how parentheses have been added to make the numerator (1+i) and the denominator (1-i) which is what I think you intended.