-5a-4+2a=-25

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Solution for -5a-4+2a=-25 equation: 


a in (-oo:+oo)

2*a-5*a-4 = -25 // + 25

2*a-5*a-4+25 = 0

21-3*a = 0 // - 21

-3*a = -21 // : -3

a = -21/(-3)

a = 7

a = 7

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