-5a-7=3a-15

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Solution for -5a-7=3a-15 equation: 


a in (-oo:+oo)

-5*a-7 = 3*a-15 // - 3*a-15

15-5*a-(3*a)-7 = 0

15-5*a-3*a-7 = 0

8-8*a = 0 // - 8

-8*a = -8 // : -8

a = -8/(-8)

a = 1

a = 1

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