8.4=-1.2r

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Solution for 8.4=-1.2r equation:


8.4=-1.2r

We simplify the equation to the form, which is simple to understand 
8.4=-1.2r

We move all terms containing r to the left and all other terms to the right. 
+1.2r=-8.4

We simplify left and right side of the equation. 
+1.2r=-8.4

We divide both sides of the equation by 01.2 to get r. 
r=-7

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