X+x+(x-9)=180

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Solution for X+x+(x-9)=180 equation:



X+X+(X-9)=180
We move all terms to the left:
X+X+(X-9)-(180)=0
We add all the numbers together, and all the variables
2X+(X-9)-180=0
We get rid of parentheses
2X+X-9-180=0
We add all the numbers together, and all the variables
3X-189=0
We move all terms containing X to the left, all other terms to the right
3X=189
X=189/3
X=63

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