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128=4(2)x-1
We move all terms to the left:
128-(4(2)x-1)=0
We get rid of parentheses
-42x+1+128=0
We add all the numbers together, and all the variables
-42x+129=0
We move all terms containing x to the left, all other terms to the right
-42x=-129
x=-129/-42
x=3+1/14
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