-4(1-2у)+1

To simplify the expression \(-4(1-2y)+1\), follow these steps:

1. Distribute \(-4\) across the terms inside the parentheses: \[ -4(1) + -4(-2y) = -4 + 8y \]

2. Now include the \(+1\) from the original expression: \[ -4 + 8y + 1 \]

3. Combine the constant terms: \[ (-4 + 1) + 8y = -3 + 8y \]

Thus, the simplified expression is: \[ 8y - 3 \]