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x+2x=1-16x
We move all terms to the left:
x+2x-(1-16x)=0
We add all the numbers together, and all the variables
x+2x-(-16x+1)=0
We add all the numbers together, and all the variables
3x-(-16x+1)=0
We get rid of parentheses
3x+16x-1=0
We add all the numbers together, and all the variables
19x-1=0
We move all terms containing x to the left, all other terms to the right
19x=1
x=1/19
x=1/19