The equation is .
Solve the equation for q.
Subtract 12 from each side.
Multiply each side by negative 3.
.
The value of .
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for q.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=76e9f5f779b626f5c22cae80d1477d39.png\")
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.