3x+(x+40)+x+(x-10)=360

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Solution for 3x+(x+40)+x+(x-10)=360 equation: 



3x+(x+40)+x+(x-10)=360

We move all terms to the left:

3x+(x+40)+x+(x-10)-(360)=0

We add all the numbers together, and all the variables

4x+(x+40)+(x-10)-360=0

We get rid of parentheses

4x+x+x+40-10-360=0

We add all the numbers together, and all the variables

6x-330=0

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

6x=330

x=330/6

x=55

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