Addition of like terms: First, we want to get all the terms with r on one side of the equation and the constants on the other side. We can do this by adding 8r to both sides of the equation.−6r+8r=−8r−8+8r
Simplification of equation: Now, we simplify the equation by combining like terms on both sides.−6r+8r=2r−8r+8r=0So, the equation becomes:2r=−8
Division to solve: To solve for r, we divide both sides of the equation by 2.22r=2−8
Final value of r: After dividing, we get the value of r.r=−4
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