8а-(4б-3а)

To simplify the expression \( 8a - (4b - 3a) \), follow these steps:

1. Distribute the negative sign across the terms inside the parentheses: \[ 8a - 4b + 3a \]

2. Combine like terms \(8a\) and \(3a\): \[ (8a + 3a) - 4b = 11a - 4b \]

Thus, the simplified expression is: \[ 11a - 4b \]