138.45=(x+6.50+3.60)13

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Solution for 138.45=(x+6.50+3.60)13 equation: 



138.45=(x+6.50+3.60)13

We move all terms to the left:

138.45-((x+6.50+3.60)13)=0

We add all the numbers together, and all the variables

-((x+10.1)13)+138.45=0



We calculate terms in parentheses: -((x+10.1)13), so:

(x+10.1)13

We multiply parentheses

13x+131.3

Back to the equation:

-(13x+131.3)



We get rid of parentheses

-13x-131.3+138.45=0

We add all the numbers together, and all the variables

-13x+7.15=0

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

-13x=-7.15

x=-7.15/-13

x=6.21739130435/11.3043478261

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