#### Answer

$$x = 12$$

#### Work Step by Step

We use distributive property to get rid of the parentheses:
$$4(x) + 4(1) = 25 + 3(x) - 3(3)$$
Multiply:
$$4x + 4 = 25 + 3x - 9$$
Group like terms on the right-hand side of the equation:
$$4x+ 4 = (25 - 9) + 3x$$
Combine like terms:
$$4x + 4 = 16 + 3x$$
Isolate variables to one side of the equation by subtracting $3x$ from both sides of the equation:
$$x + 4 = 16$$
Subtract $4$ from both sides to solve for $x$:
$$x = 12$$