3x+x/2=400

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Solution for 3x+x/2=400 equation:



3x+x/2=400
We move all terms to the left:
3x+x/2-(400)=0
We multiply all the terms by the denominator
3x*2+x-400*2=0
We add all the numbers together, and all the variables
x+3x*2-800=0
Wy multiply elements
x+6x-800=0
We add all the numbers together, and all the variables
7x-800=0
We move all terms containing x to the left, all other terms to the right
7x=800
x=800/7
x=114+2/7

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