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nd the missing number so

◻

x-9=-2x-15
Submit

nd the missing number so $\newline$ $\square$ $\newline$ $x-9=-2 x-15$ $\newline$ Submit

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Create equations with no solutions or infinitely many solutions

Full solution

Q. nd the missing number so

\newline

\square

\newline

x-9=-2 x-15

\newline

Submit

Identical Equations: To have infinitely many solutions, the equation on both sides must be identical.
Set Coefficients Equal: Set the coefficients of $x$ and the constants on both sides of the equation to be equal. $\newline$ $\square \times x - 9 = -2 \times x - 15$
Adjust Coefficients: For the coefficients of $x$ to be equal, the missing number must be $-2$ . $\newline$ $-2 \times x - 9 = -2 \times x - 15$
Check Constants: Now, check if the constants are the same. They are not, so there's a mistake. $\newline$ $-9 \neq -15$

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