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Solve for 
e.

{:[9e-7=7e-11],[e=◻]:}

Solve for e e .\newline9e7=7e11e= \begin{array}{l} 9 e-7=7 e-11 \\ e=\square \end{array}

Full solution

Q. Solve for e e .\newline9e7=7e11e= \begin{array}{l} 9 e-7=7 e-11 \\ e=\square \end{array}
  1. Write down equations: Write down the system of equations.\newlineWe have the following system of equations:\newline9e7=7e11 9e - 7 = 7e - 11 \newlinee= e = ◻ \newlineWe need to find the value of e that satisfies both equations.
  2. Isolate variable e: Isolate the variable e on one side in the first equation.\newlineTo do this, we will subtract 77e from both sides of the equation:\newline9e77e=7e117e 9e - 7 - 7e = 7e - 11 - 7e \newline2e7=11 2e - 7 = -11 \newlineNow, we have isolated the terms with e on one side of the equation.
  3. Add to isolate e: Add 77 to both sides of the equation to isolate e completely.\newline2e7+7=11+7 2e - 7 + 7 = -11 + 7 \newline2e=4 2e = -4 \newlineNow, we have an equation with e on one side and a constant on the other.
  4. Divide to solve for e: Divide both sides of the equation by 22 to solve for e.\newline2e2=42 \frac{2e}{2} = \frac{-4}{2} \newlinee=2 e = -2 \newlineWe have found the value of e that satisfies the first equation.
  5. Check second equation: Check if the found value of ee satisfies the second equation.\newlineThe second equation is simply e=e = \square, which means we need to fill in the blank with the value of ee we found.\newlineSince we found e=2e = -2, we can fill in the blank with 2-2.

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