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x+4+5=8x+9-9x
We move all terms to the left:
x+4+5-(8x+9-9x)=0
We add all the numbers together, and all the variables
x-(-1x+9)+4+5=0
We add all the numbers together, and all the variables
x-(-1x+9)+9=0
We get rid of parentheses
x+1x-9+9=0
We add all the numbers together, and all the variables
2x=0
x=0/2
x=0
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