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12x+30+4x/3=180
We move all terms to the left:
12x+30+4x/3-(180)=0
We add all the numbers together, and all the variables
12x+4x/3-150=0
We multiply all the terms by the denominator
12x*3+4x-150*3=0
We add all the numbers together, and all the variables
4x+12x*3-450=0
Wy multiply elements
4x+36x-450=0
We add all the numbers together, and all the variables
40x-450=0
We move all terms containing x to the left, all other terms to the right
40x=450
x=450/40
x=11+1/4
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