Isolate j term: First, we will focus on the equation −2j+7=−12 and isolate the term containing j. −2j+7=−12 Subtract 7 from both sides to isolate the term with j. −2j+7−7=−12−7 −2j=−19
Multiply by −2: Now, we will multiply both sides by −2 to solve for j.−2j×(−2)=−19×(−2)j=38
Fill in the square: Since the second part of the system of equations is simply j=□, we can fill in the square with the value we found for j.j=38
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