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x+x*0.98=50
We move all terms to the left:
x+x*0.98-(50)=0
Wy multiply elements
x+0.98x-50=0
We add all the numbers together, and all the variables
1.98x-50=0
We move all terms containing x to the left, all other terms to the right
1.98x=50
x=50/1.98
x=25+0.5/1.98
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