0.4-r=

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Solution for 0.4-r= equation:


0.4-r=0

We simplify the equation to the form, which is simple to understand 
0.4-r=0

We move all terms containing r to the left and all other terms to the right. 
-1r=0-0.4

We simplify left and right side of the equation. 
-1r=-0.4

We divide both sides of the equation by -1 to get r. 
r=0.4

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