9x-x-4x=20+27-5

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Solution for 9x-x-4x=20+27-5 equation: 



9x-x-4x=20+27-5

We move all terms to the left:

9x-x-4x-(20+27-5)=0

We add all the numbers together, and all the variables

9x-x-4x-42=0

We add all the numbers together, and all the variables

4x-42=0

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

4x=42

x=42/4

x=10+1/2

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