7(-2a+1)=-91

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Solution for 7(-2a+1)=-91 equation: 


a in (-oo:+oo)

7*(1-2*a) = -91 // + 91

7*(1-2*a)+91 = 0

7*(1-2*a)+91 = 0

98-14*a = 0

98-14*a = 0

98-14*a = 0 // - 98

-14*a = -98 // : -14

a = -98/(-14)

a = 7

a = 7

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