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Maths Puzzle
Numerical Ability
Could you help me solve this problem?
Find and simplify where possible.
f(x)= x squared -5 if x is 2f (-3)
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7 10
-- = ----
d+5 d=2
I am very confused as to how to Solve each system by the additional method. Can someone help me understand this and solve it please?
17.) x + y = 48
12x + 14y = 628