12.7=(4.9+y)/2

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Solution for 12.7=(4.9+y)/2 equation: 



12.7=(4.9+y)/2

We move all terms to the left:

12.7-((4.9+y)/2)=0

We add all the numbers together, and all the variables

-((y+4.9)/2)+12.7=0

We multiply all the terms by the denominator


-((y+4.9)+(12.7)*2)=0



We calculate terms in parentheses: -((y+4.9)+(12.7)*2), so:

(y+4.9)+(12.7)*2

We add all the numbers together, and all the variables

(y+4.9)+25.4

We get rid of parentheses

y+4.9+25.4

We add all the numbers together, and all the variables

y+30.3

Back to the equation:

-(y+30.3)



We get rid of parentheses

-y-30.3=0

We add all the numbers together, and all the variables

-1y-30.3=0

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

-y=30.3

y=30.3/-1

y=-30+0.3/1

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