Solve the proportion. $$ \begin{array}{l}\frac{14}{10}=\frac{y+9}{15} \ y=[?]\end{array} $$

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Solve the equation $$ \frac{14}{10}=\frac{y+9}{15} $$.
Solve the equation by following steps:
- step0: Solve for $$y$$:
  $$\frac{14}{10}=\frac{y+9}{15}$$
- step1: Reduce the fraction:
  $$\frac{7}{5}=\frac{y+9}{15}$$
- step2: Swap the sides:
  $$\frac{y+9}{15}=\frac{7}{5}$$
- step3: Multiply both sides of the equation by $$15:$$
  $$\frac{y+9}{15}	imes 15=\frac{7}{5}	imes 15$$
- step4: Multiply the terms:
  $$y+9=\frac{7	imes 15}{5}$$
- step5: Evaluate:
  $$y+9=21$$
- step6: Move the constant to the right side:
  $$y=21-9$$
- step7: Subtract the numbers:
  $$y=12$$
The solution to the proportion is $$ y = 12 $$.
$$ y = 12 $$

Solve the proportion.

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