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4(9x/5-7x)=4
We move all terms to the left:
4(9x/5-7x)-(4)=0
Domain of the equation: 5-7x)!=0We add all the numbers together, and all the variables
We move all terms containing x to the left, all other terms to the right
-7x)!=-5
x!=-5/1
x!=-5
x∈R
4(-7x+9x/5)-4=0
We multiply parentheses
-28x+36x-4=0
We add all the numbers together, and all the variables
8x-4=0
We move all terms containing x to the left, all other terms to the right
8x=4
x=4/8
x=1/2
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