exam Maths Puzzle Numerical Ability

solving literal equations
3a+2-x=7a-3x

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exam Other Question

Write each of these numbers as the sum and/or difference of at most three square numbers. Some can be written in more than one way.

1. 65

2. 5 Find the maximun value of z=3x +2y subject tothe contraints x>=0, y>=0, x+2y<=4, x-y<=1