1.5x+x=21000

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Solution for 1.5x+x=21000 equation: 



1.5x+x=21000

We move all terms to the left:

1.5x+x-(21000)=0

We add all the numbers together, and all the variables

2.5x-21000=0

We move all terms containing x to the left, all other terms to the right

2.5x=21000

x=21000/2.5

x=8400

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