5x+(3x+9)=12

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Solution for 5x+(3x+9)=12 equation: 



5x+(3x+9)=12

We move all terms to the left:

5x+(3x+9)-(12)=0

We get rid of parentheses

5x+3x+9-12=0

We add all the numbers together, and all the variables

8x-3=0

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

8x=3

x=3/8

x=3/8

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