-4/7(21-14x)=4

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Solution for -4/7(21-14x)=4 equation:



-4/7(21-14x)=4
We move all terms to the left:
-4/7(21-14x)-(4)=0
Domain of the equation: 7(21-14x)!=0
x∈R
We add all the numbers together, and all the variables
-4/7(-14x+21)-4=0
We multiply all the terms by the denominator
-4*7(-14x+21)-4=0
Wy multiply elements
-28x(--4=0
We use the square of the difference formula
-28x(+4=0

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