Solve for b 9/(b-3)=2/(b+5)

$\frac{9}{b - 3} = \frac{2}{b + 5}$

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

$9 \cdot (b + 5) = (b - 3) \cdot 2$

Solve the equation for $b$ .

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Simplify $9 \cdot (b + 5)$ .

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Apply the distributive property.

$9 b + 9 \cdot 5 = (b - 3) \cdot 2$

Multiply $9$ by $5$ .

$9 b + 45 = (b - 3) \cdot 2$

Simplify $(b - 3) \cdot 2$ .

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Apply the distributive property.

$9 b + 45 = b \cdot 2 - 3 \cdot 2$

Simplify the expression.

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Move $2$ to the left of $b$ .

$9 b + 45 = 2 \cdot b - 3 \cdot 2$

Multiply $- 3$ by $2$ .

$9 b + 45 = 2 b - 6$

Move all terms containing $b$ to the left side of the equation.

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Subtract $2 b$ from both sides of the equation.

$9 b + 45 - 2 b = - 6$

Subtract $2 b$ from $9 b$ .

$7 b + 45 = - 6$

Move all terms not containing $b$ to the right side of the equation.

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Subtract $45$ from both sides of the equation.

$7 b = - 6 - 45$

Subtract $45$ from $- 6$ .

$7 b = - 51$

Divide each term by $7$ and simplify.

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Divide each term in $7 b = - 51$ by $7$ .

$\frac{7 b}{7} = \frac{- 51}{7}$

Cancel the common factor of $7$ .

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Cancel the common factor.

$\frac{7 b}{7} = \frac{- 51}{7}$

Divide $b$ by $1$ .

$b = \frac{- 51}{7}$

Move the negative in front of the fraction.

$b = - \frac{51}{7}$

The result can be shown in multiple forms.

Exact Form:

$b = - \frac{51}{7}$

Decimal Form:

$b = - 7.\overline{285714}$

Mixed Number Form:

$b = - 7 \frac{2}{7}$

Solve for b 9/(b-3)=2/(b+5)

Solving MATH problems