5x+3x=4x+12

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Solution for 5x+3x=4x+12 equation: 



5x+3x=4x+12

We move all terms to the left:

5x+3x-(4x+12)=0

We add all the numbers together, and all the variables

8x-(4x+12)=0

We get rid of parentheses

8x-4x-12=0

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

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