17x+12-13x=9x-21

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Solution for 17x+12-13x=9x-21 equation:



17x+12-13x=9x-21
We move all terms to the left:
17x+12-13x-(9x-21)=0
We add all the numbers together, and all the variables
4x-(9x-21)+12=0
We get rid of parentheses
4x-9x+21+12=0
We add all the numbers together, and all the variables
-5x+33=0
We move all terms containing x to the left, all other terms to the right
-5x=-33
x=-33/-5
x=6+3/5

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