120=0.4x+x

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Solution for 120=0.4x+x equation:



120=0.4x+x
We move all terms to the left:
120-(0.4x+x)=0
We add all the numbers together, and all the variables
-(+1.4x)+120=0
We get rid of parentheses
-1.4x+120=0
We move all terms containing x to the left, all other terms to the right
-1.4x=-120
x=-120/-1.4
x=85+1/1.4

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