exam Maths Puzzle Numerical Ability

4/(x-1)-2/(x+2)=4x-4-2x-4=2x-8=x=4

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exam Other Question

Rewrite the equation y = print_coeff(m,1)x print_const(b) as a function of x. Which is the slope of Ax+By=C?

-B/A C/A -A/B C/B