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x-50=-8x-4
We move all terms to the left:
x-50-(-8x-4)=0
We get rid of parentheses
x+8x+4-50=0
We add all the numbers together, and all the variables
9x-46=0
We move all terms containing x to the left, all other terms to the right
9x=46
x=46/9
x=5+1/9
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