7x-3x+7=3(x+4)-9X

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Solution for 7x-3x+7=3(x+4)-9X equation: 



7x-3x+7=3(x+4)-9x

We move all terms to the left:

7x-3x+7-(3(x+4)-9x)=0

We add all the numbers together, and all the variables

4x-(3(x+4)-9x)+7=0



We calculate terms in parentheses: -(3(x+4)-9x), so:

3(x+4)-9x

We add all the numbers together, and all the variables

-9x+3(x+4)

We multiply parentheses

-9x+3x+12

We add all the numbers together, and all the variables

-6x+12

Back to the equation:

-(-6x+12)



We get rid of parentheses

4x+6x-12+7=0

We add all the numbers together, and all the variables

10x-5=0

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

10x=5

x=5/10

x=1/2

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