exam Maths Puzzle Numerical Ability

On a rectangular coordinate system graph: 3x + 2y = 6

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exam Other Question

solve the equation by making an appropriate substitution:

(x)2/3 minus (x)1/3 minus 6 = 0 Please help me solve this equation: the perimeter of a rectangle is 64 cm.the area is 240cm^2. what are its dimension?