9(5+x)=81

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Solution for 9(5+x)=81 equation: 



9(5+x)=81

We move all terms to the left:

9(5+x)-(81)=0

We add all the numbers together, and all the variables

9(x+5)-81=0

We multiply parentheses

9x+45-81=0

We add all the numbers together, and all the variables

9x-36=0

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

9x=36

x=36/9

x=4

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