exam Maths Puzzle Numerical Ability

if f (x) = 5x - 1, find the following:

f (a - 2)

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exam Other Question

Solve the system of linear equations by the substitution method.
5x + 4 y = 14
15x – 2y = 7
The sum of three consecutive integers is 33 more than the least of the integers. Find the integers.