100+4x=40-x

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Solution for 100+4x=40-x equation:



100+4x=40-x
We move all terms to the left:
100+4x-(40-x)=0
We add all the numbers together, and all the variables
4x-(-1x+40)+100=0
We get rid of parentheses
4x+1x-40+100=0
We add all the numbers together, and all the variables
5x+60=0
We move all terms containing x to the left, all other terms to the right
5x=-60
x=-60/5
x=-12

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