7=0.75(10+x)

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Solution for 7=0.75(10+x) equation: 



7=0.75(10+x)

We move all terms to the left:

7-(0.75(10+x))=0

We add all the numbers together, and all the variables

-(0.75(x+10))+7=0



We calculate terms in parentheses: -(0.75(x+10)), so:

0.75(x+10)

We multiply parentheses

0.75x+7.5

Back to the equation:

-(0.75x+7.5)



We get rid of parentheses

-0.75x-7.5+7=0

We add all the numbers together, and all the variables

-0.75x-0.5=0

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

-0.75x=0.5

x=0.5/-0.75

x=-0.5/0.75

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