exam Maths Puzzle Numerical Ability

Ok this is my 4th and final question of the day. you guys are awesome to spend your time helping non math minded people like myself:)

solve the equation:
x+6/3=x+6/x

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exam Other Question

SOLVE EACH LITERAL EQUATION FOR THE INDICATED VARABLE

A = 1/2h(B + b) (for b) Area of a trapezoid
ABCD is a trapezoid with BC perpendicular to AB and BC perpendicular to CD, AB = 13, BC = 12, and CD = 8. A line segment is drawn from A to E, the midpoint of CD. a. Find the area of triangle AED. b. Find the perimeter of triangle AED.