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190=149-x
We move all terms to the left:
190-(149-x)=0
We add all the numbers together, and all the variables
-(-1x+149)+190=0
We get rid of parentheses
1x-149+190=0
We add all the numbers together, and all the variables
x+41=0
We move all terms containing x to the left, all other terms to the right
x=-41
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