7+.3x=4+.4x

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Solution for 7+.3x=4+.4x equation: 



7+.3x=4+.4x

We move all terms to the left:

7+.3x-(4+.4x)=0

We add all the numbers together, and all the variables

.3x-(.4x+4)+7=0

We get rid of parentheses

.3x-.4x-4+7=0

We add all the numbers together, and all the variables

-0.1x+3=0

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

-0.1x=-3

x=-3/-0.1

x=+30

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