3+4(x-1)=12-15

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Solution for 3+4(x-1)=12-15 equation: 



3+4(x-1)=12-15

We move all terms to the left:

3+4(x-1)-(12-15)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

4(x-1)+6=0

We multiply parentheses

4x-4+6=0

We add all the numbers together, and all the variables

4x+2=0

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

4x=-2

x=-2/4

x=-1/2

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