Answer:The answer to your problem is x = -1.Step-by-step explanation:To solve this problem, we should first use the distributive property on the left side of the equation. This means that we multiply the two terms inside the parentheses by the coefficient outside the parentheses, which is modeled below:5 + 2x + 12x - 3 = -5 + 7x Next, we should combine like terms on the left side of the equation. This means add up all of the terms that contain an "x" and add up all of the terms that are constants (only numbers). This gives us:2 + 14x = -5 + 7xNext, we should add 5 to both sides.2 + 5 + 14x = -5 + 5 + 7x7 + 14x = 7x Then, we should subtract 14x from both sides. This will give us a constant term on one side of the equation and the variable term on the other side.7 = -7xFinally, we must divide both sides by -7 to get the variable x alone on the right side of the equation.x = -1Therefore, the answer is x = -1.If you would like to check the answer, you can plug this value for x back into the equation and make sure that the equation still holds true.Hope this helps!