book Maths Puzzle Numerical Ability

-1/(w-1)+4+5/(w-4)=0

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book Other Question

what is the answer to -/***************** (the stars are a radical)
80 a7 b9 c11 d24
Write the equation of each line. Give the answer in slope-intercept form.

The line through (-1, -@0 with slope 3/7