(1+x)3=15+x

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Solution for (1+x)3=15+x equation: 



(1+x)3=15+x

We move all terms to the left:

(1+x)3-(15+x)=0

We add all the numbers together, and all the variables

(x+1)3-(x+15)=0

We multiply parentheses

3x-(x+15)+3=0

We get rid of parentheses

3x-x-15+3=0

We add all the numbers together, and all the variables

2x-12=0

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

2x=12

x=12/2

x=6

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