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If the point (a, 3) lies on the graph of the equation 5x +2y = -4, find the value of a.

By Ruby

If the point (a, 3) lies on the graph of the equation 5x +2y = -4, find the value of a.

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Ruby

If the parallel sides of a trapezium are 10 cm and 6 cm and height is 5 cm

then find its area.​

Write the degree of the following polynomials:
(i) 7x² + 5x² +2
(ii) 5
Please show the working too​

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