140=170-x

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Solution for 140=170-x equation:



140=170-x
We move all terms to the left:
140-(170-x)=0
We add all the numbers together, and all the variables
-(-1x+170)+140=0
We get rid of parentheses
1x-170+140=0
We add all the numbers together, and all the variables
x-30=0
We move all terms containing x to the left, all other terms to the right
x=30

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