5a+3=7a-7

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


a in (-oo:+oo)

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

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

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

10-2*a = 0 // - 10

-2*a = -10 // : -2

a = -10/(-2)

a = 5

a = 5

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