7=(12+x)/4

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Solution for 7=(12+x)/4 equation: 



7=(12+x)/4

We move all terms to the left:

7-((12+x)/4)=0

We add all the numbers together, and all the variables

-((x+12)/4)+7=0

We multiply all the terms by the denominator


-((x+12)+7*4)=0



We calculate terms in parentheses: -((x+12)+7*4), so:

(x+12)+7*4

We add all the numbers together, and all the variables

(x+12)+28

We get rid of parentheses

x+12+28

We add all the numbers together, and all the variables

x+40

Back to the equation:

-(x+40)



We get rid of parentheses

-x-40=0

We add all the numbers together, and all the variables

-1x-40=0

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

-x=40

x=40/-1

x=-40

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