exam Maths Puzzle Numerical Ability

Could you please help me with this problem:
(3-5i)-(2-7i) Write the expression in the form a+bi, where a and b are real numbers. Thank you!

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exam Other Question

Which of the following points is included in the graph of : -7y+3x<0?

a. (-6,-3)
b. (3,-2)
c. (7,4)
d. (5,-3) Can someone help me on this problem?

I need to solve the following equation for x, and show proof:

2(x-3) - 3(x + 5) = 3(x-2) - 7

Thanks,
Ashley