(3+x)5=20

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Solution for (3+x)5=20 equation: 



(3+x)5=20

We move all terms to the left:

(3+x)5-(20)=0

We add all the numbers together, and all the variables

(x+3)5-20=0

We multiply parentheses

5x+15-20=0

We add all the numbers together, and all the variables

5x-5=0

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

5x=5

x=5/5

x=1

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