exam Maths Puzzle Numerical Ability

Solve for x: 9^(2x-1)= (81^(x+1))(27^-x)

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exam Other Question

Students in algebar class did an experiment similar to the information "WHERE THEY WOULD MEET" from lesson 6.1 they had two walkers start at opposite ends of the marked letgh and w A field is in the shape of a rectangle.The ratio
of the length of the field to its width is 3 to 2. If the
perimeter of the field is 190 yards, what is the demensions
of the field?