30+70+(x-2*)=189

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Solution for 30+70+(x-2*)=189 equation: 



30+70+(x-2*)=189

We move all terms to the left:

30+70+(x-2*)-(189)=0

We add all the numbers together, and all the variables

(+x)+30+70-189=0

We add all the numbers together, and all the variables

(+x)-89=0

We get rid of parentheses

x-89=0

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

x=89

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