4r+9=8-13

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Solution for 4r+9=8-13 equation:


4r+9=8-13

We simplify the equation to the form, which is simple to understand 
4r+9=8-13

We move all terms containing r to the left and all other terms to the right. 
+4r=+8-13-9

We simplify left and right side of the equation. 
+4r=-14

We divide both sides of the equation by 4 to get r. 
r=-3.5

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