To have an infinite number of solutions, the equation must be true for any value of x. In other words, we need the equation to simplify to something like 0 = 0.
Let's simplify the given equation step-by-step:
2(5x + 6) + 2 = -6x + _x + _
First, distribute the 2 to the terms inside the parentheses:
10x + 12 + 2 = -6x + _x + _
Combine like terms:
10x + 14 = -6x + _x + _
Next, let's gather like terms on one side of the equation. To do that, let's add 6x to both sides:
10x + 6x + 14 = -6x + 6x + _x + _
Combine like terms:
16x + 14 = 7x + _
To eliminate the variables on the right side of the equation, we need to subtract 7x from both sides:
16x + 14 - 7x = 7x + _x - 7x
Combine like terms:
9x + 14 = _x
Now, in order for the equation to have an infinite number of solutions, the coefficient of x on one side should cancel out when compared to the coefficient of x on the other side. In this case, we have 9x on the left side and _x on the right side. For them to cancel out, the missing value should be -9, since -9x + 9x = 0.
Thus, the missing values that would make this equation have an infinite number of solutions are -9 and 0.