exam Maths Puzzle Numerical Ability

What is -3(2y - 9) + y simplified?

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exam Other Question

Perform the indicated operations. Simplify if possible

8/x+8 - 40/8x Hello, I am not sure if I am in the right area for this question...if not please direct me on what this problem is called (that is my main problem, not sure how to categorize it).