12r-9=4r+23

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Solution for 12r-9=4r+23 equation:


12r-9=4r+23

We simplify the equation to the form, which is simple to understand 
12r-9=4r+23

We move all terms containing r to the left and all other terms to the right. 
+12r-4r=+23+9

We simplify left and right side of the equation. 
+8r=+32

We divide both sides of the equation by 8 to get r. 
r=4

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