x-84=0.3x

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Solution for x-84=0.3x equation:



x-84=0.3x
We move all terms to the left:
x-84-(0.3x)=0
We add all the numbers together, and all the variables
x-(+0.3x)-84=0
We get rid of parentheses
x-0.3x-84=0
We add all the numbers together, and all the variables
0.7x-84=0
We move all terms containing x to the left, all other terms to the right
0.7x=84
x=84/0.7
x=120

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