300+.7x=40+.9x

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Solution for 300+.7x=40+.9x equation: 



300+.7x=40+.9x

We move all terms to the left:

300+.7x-(40+.9x)=0

We add all the numbers together, and all the variables

.7x-(.9x+40)+300=0

We get rid of parentheses

.7x-.9x-40+300=0

We add all the numbers together, and all the variables

-0.2x+260=0

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

-0.2x=-260

x=-260/-0.2

x=+1300

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