7x-3(5+3x)=6

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Solution for 7x-3(5+3x)=6 equation: 



7x-3(5+3x)=6

We move all terms to the left:

7x-3(5+3x)-(6)=0

We add all the numbers together, and all the variables

7x-3(3x+5)-6=0

We multiply parentheses

7x-9x-15-6=0

We add all the numbers together, and all the variables

-2x-21=0

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

-2x=21

x=21/-2

x=-10+1/2

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