10(9+x)=220

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Solution for 10(9+x)=220 equation: 



10(9+x)=220

We move all terms to the left:

10(9+x)-(220)=0

We add all the numbers together, and all the variables

10(x+9)-220=0

We multiply parentheses

10x+90-220=0

We add all the numbers together, and all the variables

10x-130=0

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

10x=130

x=130/10

x=13

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