exam Maths Puzzle Numerical Ability

3x + y = 2 and 2x-y=3

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exam Other Question

solve the equation for y

3/4 +5y=20

2/3x-1/2y=12
Given f(x)= {2x-1 x<3
{-2 x>or=to3

Evaluate f(-1)
Evaluate f(3)
Evaluate f(5)

Thanks