3x=12+x+4

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Solution for 3x=12+x+4 equation:



3x=12+x+4
We move all terms to the left:
3x-(12+x+4)=0
We add all the numbers together, and all the variables
3x-(x+16)=0
We get rid of parentheses
3x-x-16=0
We add all the numbers together, and all the variables
2x-16=0
We move all terms containing x to the left, all other terms to the right
2x=16
x=16/2
x=8

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