Solve for b
b = \frac{7}{5} = 1\frac{2}{5} = 1.4
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-5=\frac{-4\times 8}{5}+b
Express -\frac{4}{5}\times 8 as a single fraction.
-5=\frac{-32}{5}+b
Multiply -4 and 8 to get -32.
-5=-\frac{32}{5}+b
Fraction \frac{-32}{5} can be rewritten as -\frac{32}{5} by extracting the negative sign.
-\frac{32}{5}+b=-5
Swap sides so that all variable terms are on the left hand side.
b=-5+\frac{32}{5}
Add \frac{32}{5} to both sides.
b=-\frac{25}{5}+\frac{32}{5}
Convert -5 to fraction -\frac{25}{5}.
b=\frac{-25+32}{5}
Since -\frac{25}{5} and \frac{32}{5} have the same denominator, add them by adding their numerators.
b=\frac{7}{5}
Add -25 and 32 to get 7.
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Integration
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Limits
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