exam Maths Puzzle Numerical Ability

Please find X and Y: 2X+3Y=16, 5X+3Y=44

Please show work (explain process). Thanks

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exam Other Question

please help me with these problems:

what is the square roots of 128 and 80? Please help me with these problems.I cant figure them out.

SIMPLIFY EACH OF THE FOLLOWING.BEGIN WITH THE INNERMOST PARENTHESES.

1). (8x-y)-[-(2x + y)-(3x-6y)]

2). 6