7(1-4a)=7

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Solution for 7(1-4a)=7 equation: 


a in (-oo:+oo)

7*(1-(4*a)) = 7 // - 7

7*(1-(4*a))-7 = 0

7*(1-4*a)-7 = 0

7*(1-4*a)-7 = 0

-28*a = 0

-28*a = 0

-28*a = 0 // : -28

a = 0

a = 0

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