4x^2+2y=8 and 2x^2=7, then find y

Equation obtained from the question.

4x² + 2y = 8 .............(1)

2x² = 7..... (2)

Determination of the value of x².

From equation 2,

Divide both side by 2

Determination of the value of y

From equation 1,

Clear bracket

Collect like terms

Divide both side by 2

Therefore, the value of y is –3

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