4/5(4-7x)=-20

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Solution for 4/5(4-7x)=-20 equation: 



4/5(4-7x)=-20

We move all terms to the left:

4/5(4-7x)-(-20)=0



Domain of the equation: 5(4-7x)!=0

x∈R



We add all the numbers together, and all the variables

4/5(-7x+4)-(-20)=0

We add all the numbers together, and all the variables

4/5(-7x+4)+20=0

We multiply all the terms by the denominator


20*5(-7x+4)+4=0

Wy multiply elements

100x(-+4=0

We use the square of the difference formula

100x(-4=0

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