163=(1-0.4)(1-r)340

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Solution for 163=(1-0.4)(1-r)340 equation: 



163=(1-0.4)(1-r)340

We move all terms to the left:

163-((1-0.4)(1-r)340)=0

We add all the numbers together, and all the variables

-((0.6)(-1r+1)340)+163=0

We multiply parentheses ..

-((-0.6r+0.6)340)+163=0



We calculate terms in parentheses: -((-0.6r+0.6)340), so:

(-0.6r+0.6)340

We multiply parentheses

0r+204

We add all the numbers together, and all the variables

r+204

Back to the equation:

-(r+204)



We get rid of parentheses

-r-204+163=0

We add all the numbers together, and all the variables

-1r-41=0

We move all terms containing r to the left, all other terms to the right

-r=41

r=41/-1

r=-41

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