exam Maths Puzzle Numerical Ability

((3)/(x-2))+((2x)/(X^2-4))=((5)/(x+2))

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exam Other Question

Can you please help me solve this problem and show me?

Solve for x
15 < 8 - 3x _> 20

Thank You find the slope intercept form (y=mx+b) of the equation for the line that satisfy the following:
passes through (5, -9) and is perpendicular to the line whose equation is y=1/7x +4