x-(4x)=7x+12+3

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Solution for x-(4x)=7x+12+3 equation: 



x-(4x)=7x+12+3

We move all terms to the left:

x-(4x)-(7x+12+3)=0

We add all the numbers together, and all the variables

x-4x-(7x+15)=0

We add all the numbers together, and all the variables

-3x-(7x+15)=0

We get rid of parentheses

-3x-7x-15=0

We add all the numbers together, and all the variables

-10x-15=0

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

-10x=15

x=15/-10

x=-1+1/2

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