30x-45x=2820

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Solution for 30x-45x=2820 equation: 



30x-45x=2820

We move all terms to the left:

30x-45x-(2820)=0

We add all the numbers together, and all the variables

-15x-2820=0

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

-15x=2820

x=2820/-15

x=-188

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