Isolate variable r: First, we need to isolate the variable r on one side of the equation. Let's add 5r to both sides to move all the r terms to one side.−10−5r+5r=−6r−1+5rSimplify the equation.−10=r−1
Simplify equation: Next, we will isolate r completely by adding 1 to both sides of the equation.−10+1=r−1+1Simplify the equation.−9=r
Isolate r completely: We have found the value of r.r=−9
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