3(1-x)+4x=7

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Solution for 3(1-x)+4x=7 equation: 



3(1-x)+4x=7

We move all terms to the left:

3(1-x)+4x-(7)=0

We add all the numbers together, and all the variables

3(-1x+1)+4x-7=0

We add all the numbers together, and all the variables

4x+3(-1x+1)-7=0

We multiply parentheses

4x-3x+3-7=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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