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x+3x/100=9970
We move all terms to the left:
x+3x/100-(9970)=0
We multiply all the terms by the denominator
x*100+3x-9970*100=0
We add all the numbers together, and all the variables
3x+x*100-997000=0
Wy multiply elements
3x+100x-997000=0
We add all the numbers together, and all the variables
103x-997000=0
We move all terms containing x to the left, all other terms to the right
103x=997000
x=997000/103
x=9679+63/103
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