exam Maths Puzzle Numerical Ability

Find values for m and b in the following system such that the solution to the system is (-3,4)
5x+7y=b
mx+y=22
m=
b=

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exam Other Question

one-half of pias age two years from now plus one-third of her age three years ago is 20 yrs. How old is she now? match the terms with the definitions

terms
1. (5x + 2y)2
2. (x - 2y)2
3. (x - 2y) (x + 2y)
4. (5x - 2y)2
5. (5x + 2y) (5x - 2y)

definitions
a. x2 - 4xy + 4y
b.