3(1+3x)-(1-4x)=15

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Solution for 3(1+3x)-(1-4x)=15 equation: 



3(1+3x)-(1-4x)=15

We move all terms to the left:

3(1+3x)-(1-4x)-(15)=0

We add all the numbers together, and all the variables

3(3x+1)-(-4x+1)-15=0

We multiply parentheses

9x-(-4x+1)+3-15=0

We get rid of parentheses

9x+4x-1+3-15=0

We add all the numbers together, and all the variables

13x-13=0

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

13x=13

x=13/13

x=1

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