5x-7x=9+11

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Solution for 5x-7x=9+11 equation: 



5x-7x=9+11

We move all terms to the left:

5x-7x-(9+11)=0

We add all the numbers together, and all the variables

5x-7x-20=0

We add all the numbers together, and all the variables

-2x-20=0

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

-2x=20

x=20/-2

x=-10

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