7+r/2=12

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Solution for 7+r/2=12 equation: 



7+r/2=12

We move all terms to the left:

7+r/2-(12)=0

We add all the numbers together, and all the variables

r/2-5=0

We multiply all the terms by the denominator


r-5*2=0

We add all the numbers together, and all the variables

r-10=0

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

r=10

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