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x+x+x+x*3/4+3=300
We move all terms to the left:
x+x+x+x*3/4+3-(300)=0
We add all the numbers together, and all the variables
3x+x*3/4-297=0
We multiply all the terms by the denominator
3x*4+x*3-297*4=0
We add all the numbers together, and all the variables
3x*4+x*3-1188=0
Wy multiply elements
12x+3x-1188=0
We add all the numbers together, and all the variables
15x-1188=0
We move all terms containing x to the left, all other terms to the right
15x=1188
x=1188/15
x=79+1/5
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