Determine the missing values that would make this equation have zero solutions 2(6x+3)=6x+?x+6

1 answer

To determine the missing values that make the equation \(2(6x + 3) = 6x + ?x + 6\) have zero solutions, we'll start by simplifying both sides and analyzing the equation.

  1. Expand the left side: \[ 2(6x + 3) = 12x + 6 \]

  2. Rewrite the equation with the left side expanded: \[ 12x + 6 = 6x + ?x + 6 \] Simplifying the right side gives: \[ 12x + 6 = (6 + ? )x + 6 \]

  3. Remove the common term (6) from both sides: \[ 12x = (6 + ? )x \]

  4. Set the coefficients of \(x\) on both sides equal to each other: \[ 12 = 6 + ? \]

  5. Solve for the missing value: \[ ? = 12 - 6 = 6 \]

Now, let's analyze the equation \(12x = (6 + 6)x\) or \(12x = 12x\). This indicates that the equation is true for all values of \(x\).

To find a scenario where there are zero solutions, we want to adjust the right side such that the coefficients are not equal. If we let \(? < 6\) (significantly more negative, or adjust to a value not equal to zero), then:

  • If we choose \(? = -1\), we can see what happens: \[ 12x = (6 - 1)x \Rightarrow 12x = 5x \] Which simplifies to: \[ 12x - 5x = 0 \Rightarrow 7x = 0 \] This leads to \(x = 0\) which implies a solution exists.

To derive a case with zero solutions, simply set: \[ ? = -6 \] Substituting back will yield: \[ 12x = (6 - 6)x \Rightarrow 12x = 0 \] Since this states that \(12x\) must equal \(0\), we have determined that there are indeed no possible non-zero solutions from any \(x \ne 0\).

Thus, to achieve the equation yielding zero solutions, set \(\mathbf{? = -6}\).