r-4=-8*r

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Solution for r-4=-8*r equation:


r-4=-8*r

We simplify the equation to the form, which is simple to understand 
r-4=-8*r

Simplifying:
r-4=-8r

We move all terms containing r to the left and all other terms to the right. 
+1r+8r=+4

We simplify left and right side of the equation. 
+9r=+4

We divide both sides of the equation by 9 to get r. 
r=0.444444444444

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