Solve for t 2/5=30/(3t+9)

$\frac{2}{5} = \frac{30}{3 t + 9}$

Rewrite the equation as $\frac{30}{3 t + 9} = \frac{2}{5}$ .

$\frac{30}{3 t + 9} = \frac{2}{5}$

Cancel the common factor of $30$ and $3 t + 9$ .

Factor $3$ out of $30$ .

$\frac{3 \cdot 10}{3 t + 9} = \frac{2}{5}$

Cancel the common factors.

Factor $3$ out of $3 t$ .

$\frac{3 \cdot 10}{3 (t) + 9} = \frac{2}{5}$

Factor $3$ out of $9$ .

$\frac{3 \cdot 10}{3 (t) + 3 (3)} = \frac{2}{5}$

Factor $3$ out of $3 (t) + 3 (3)$ .

$\frac{3 \cdot 10}{3 (t + 3)} = \frac{2}{5}$

Cancel the common factor.

$\frac{3 \cdot 10}{3 (t + 3)} = \frac{2}{5}$

Rewrite the expression.

$\frac{10}{t + 3} = \frac{2}{5}$

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.

$10 \cdot 5 = (t + 3) \cdot 2$

Solve the equation for $t$ .

Rewrite the equation as $(t + 3) \cdot 2 = 10 \cdot 5$ .

$(t + 3) \cdot 2 = 10 \cdot 5$

Multiply $10$ by $5$ .

$(t + 3) \cdot 2 = 50$

Divide each term in $((t + 3) \cdot 2) = 50$ by $2$ and simplify.

Divide each term in $((t + 3) \cdot 2) = 50$ by $2$ .

$\frac{((t + 3) \cdot 2)}{2} = \frac{50}{2}$

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

$\frac{(t + 3) \cdot 2}{2} = \frac{50}{2}$

Divide $t + 3$ by $1$ .

$t + 3 = \frac{50}{2}$

Simplify the right side.

Divide $50$ by $2$ .

$t + 3 = 25$

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

Subtract $3$ from both sides of the equation.

$t = 25 - 3$

Subtract $3$ from $25$ .

$t = 22$

Solve for t 2/5=30/(3t+9)

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