2x-15+2x=9-12

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Solution for 2x-15+2x=9-12 equation: 



2x-15+2x=9-12

We move all terms to the left:

2x-15+2x-(9-12)=0

We add all the numbers together, and all the variables

2x+2x-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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