-7a=-7

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Solution for -7a=-7 equation: 


a in (-oo:+oo)

-7*a = -7 // + 7

7-7*a = 0

7-7*a = 0 // - 7

-7*a = -7 // : -7

a = -7/(-7)

a = 1

a = 1

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