5(4+r)=1/2

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Solution for 5(4+r)=1/2 equation: 



5(4+r)=1/2

We move all terms to the left:

5(4+r)-(1/2)=0

We add all the numbers together, and all the variables

5(r+4)-(+1/2)=0

We multiply parentheses

5r+20-(+1/2)=0

We get rid of parentheses

5r+20-1/2=0

We multiply all the terms by the denominator


5r*2-1+20*2=0

We add all the numbers together, and all the variables

5r*2+39=0

Wy multiply elements

10r+39=0

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

10r=-39

r=-39/10

r=-3+9/10

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