3x-8x+9x=12-7

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Solution for 3x-8x+9x=12-7 equation: 



3x-8x+9x=12-7

We move all terms to the left:

3x-8x+9x-(12-7)=0

We add all the numbers together, and all the variables

3x-8x+9x-5=0

We add all the numbers together, and all the variables

4x-5=0

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

4x=5

x=5/4

x=1+1/4

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