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1/4(8x-20)=-9
We move all terms to the left:
1/4(8x-20)-(-9)=0
Domain of the equation: 4(8x-20)!=0We add all the numbers together, and all the variables
x∈R
1/4(8x-20)+9=0
We multiply all the terms by the denominator
9*4(8x-20)+1=0
Wy multiply elements
36x(8+1=0
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