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what is

(x-30)+(x-30)+(x-30)=540

 Jan 22, 2019
 #1
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(x-30)+(x-30)+(x-30)=540       Remove parens

 

x-30 + x -30 + x -30 = 540      Gather 'like' terms

3x - 90 = 540       Add 90 to both sides of equation

3x = 630              Divide both sides by 3

x = 210 

 Jan 22, 2019

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