Write down equations: Write down the system of equations.We have the following system of equations:9e−7=7e−11e=◻We need to find the value of e that satisfies both equations.
Isolate variable e: Isolate the variable e on one side in the first equation.To do this, we will subtract 7e from both sides of the equation:9e−7−7e=7e−11−7e2e−7=−11Now, we have isolated the terms with e on one side of the equation.
Add to isolate e: Add 7 to both sides of the equation to isolate e completely.2e−7+7=−11+72e=−4Now, we have an equation with e on one side and a constant on the other.
Divide to solve for e: Divide both sides of the equation by 2 to solve for e.22e=2−4e=−2We have found the value of e that satisfies the first equation.
Check second equation: Check if the found value of e satisfies the second equation.The second equation is simply e=□, which means we need to fill in the blank with the value of e we found.Since we found e=−2, we can fill in the blank with −2.
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