7(-4a+9)=7

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Solution for 7(-4a+9)=7 equation: 


a in (-oo:+oo)

7*(9-4*a) = 7 // - 7

7*(9-4*a)-7 = 0

7*(9-4*a)-7 = 0

56-28*a = 0

56-28*a = 0

56-28*a = 0 // - 56

-28*a = -56 // : -28

a = -56/(-28)

a = 2

a = 2

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