.30x=x-140

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Solution for .30x=x-140 equation: 



.30x=x-140

We move all terms to the left:

.30x-(x-140)=0

We get rid of parentheses

.30x-x+140=0

We add all the numbers together, and all the variables

-0.7x+140=0

We move all terms containing x to the left, all other terms to the right

-0.7x=-140

x=-140/-0.7

x=+200

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