exam Maths Puzzle Numerical Ability

Solve 2x (x +3) = x + 25

x=5/2 and x=5 is this answer correct.

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exam Other Question

Can someone help me on this problem?

The length of a rectangular playing field is 5 ft. less than twice its width. If the perimeter of the playing field is 230 ft., I nned to find the length and width of the field.

Thanks,
Sher how can i create a rectangle with two sides that each measure 2 centimeters, and whose area is exactly 13 cm2?