Solve for b
b=\frac{5}{7}\approx 0.714285714
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b=\frac{977-972}{439-432}
Calculate b to the power of 1 and get b.
b=\frac{5}{439-432}
Subtract 972 from 977 to get 5.
b=\frac{5}{7}
Subtract 432 from 439 to get 7.
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