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7/2x+1/2x=18+9/2x
We move all terms to the left:
7/2x+1/2x-(18+9/2x)=0
Domain of the equation: 2x!=0
x!=0/2
x!=0
x∈R
Domain of the equation: 2x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
7/2x+1/2x-(9/2x+18)=0
We get rid of parentheses
7/2x+1/2x-9/2x-18=0
We multiply all the terms by the denominator
-18*2x+7+1-9=0
We add all the numbers together, and all the variables
-18*2x-1=0
Wy multiply elements
-36x-1=0
We move all terms containing x to the left, all other terms to the right
-36x=1
x=1/-36
x=-1/36
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