4r+5r=45

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Solution for 4r+5r=45 equation:


4r+5r=45

We simplify the equation to the form, which is simple to understand 
4r+5r=45

We move all terms containing r to the left and all other terms to the right. 
+4r+5r=+45

We simplify left and right side of the equation. 
+9r=+45

We divide both sides of the equation by 9 to get r. 
r=5

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