(8+x)3=30

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Solution for (8+x)3=30 equation: 



(8+x)3=30

We move all terms to the left:

(8+x)3-(30)=0

We add all the numbers together, and all the variables

(x+8)3-30=0

We multiply parentheses

3x+24-30=0

We add all the numbers together, and all the variables

3x-6=0

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

3x=6

x=6/3

x=2

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