8x+3+4x=8x+15

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Solution for 8x+3+4x=8x+15 equation: 



8x+3+4x=8x+15

We move all terms to the left:

8x+3+4x-(8x+15)=0

We add all the numbers together, and all the variables

12x-(8x+15)+3=0

We get rid of parentheses

12x-8x-15+3=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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