(7.8x+7.8)+(7.7x+6.4)=133.55

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Solution for (7.8x+7.8)+(7.7x+6.4)=133.55 equation: 



(7.8x+7.8)+(7.7x+6.4)=133.55

We move all terms to the left:

(7.8x+7.8)+(7.7x+6.4)-(133.55)=0

We add all the numbers together, and all the variables

(7.8x+7.8)+(7.7x+6.4)-133.55=0

We get rid of parentheses

7.8x+7.7x+7.8+6.4-133.55=0

We add all the numbers together, and all the variables

15.5x-119.35=0

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

15.5x=119.35

x=119.35/15.5

x=7+1.8547008547009/2.6495726495727

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