7x+2x-3x=7+5

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Solution for 7x+2x-3x=7+5 equation: 



7x+2x-3x=7+5

We move all terms to the left:

7x+2x-3x-(7+5)=0

We add all the numbers together, and all the variables

7x+2x-3x-12=0

We add all the numbers together, and all the variables

6x-12=0

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

6x=12

x=12/6

x=2

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