Respuesta :

Janelle, this is the solution:

a² + 2b - 5x + 5.3 = 9.7

25 + 8 - 5x + 5.3 = 9.7

38.3 - 5x = 9.7

Subtracting 38.3 at both sides:

38.3 - 5x - 38.3 = 9.7 - 38.3

-5x = -28.6

Dividing by - 5 at both sides:

-5x/-5 = -28.6/-5

x = 5.72

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