exam Maths Puzzle Numerical Ability

Please can you help me find x

((( 3x� - 6x + 1 = 0 )))

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exam Other Question

((x^2-y^2)/2x)/((x+y)/x^2) In 1991, the separation between college football goalpost uprights was reduced from 23 feet, 4 inches to 18 feet, 6 inches. To the nearest tenth of a percent what was the reduction?