2a+3a=5,115

To solve the equation \( 2a + 3a = 5,115 \), you can follow these steps:

1. Combine like terms on the left side: \[ 5a = 5,115 \]

2. Now, divide both sides by 5 to solve for \( a \): \[ a = \frac{5,115}{5} \]

3. Calculating the division: \[ a = 1,023 \]

So, the solution is \( a = 1,023 \).