-39=-5a-2a+3

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Solution for -39=-5a-2a+3 equation: 


a in (-oo:+oo)

-39 = 3-5*a-(2*a) // - 3-5*a-(2*a)

2*a-(-5*a)-39-3 = 0

5*a+2*a-39-3 = 0

7*a-42 = 0 // + 42

7*a = 42 // : 7

a = 42/7

a = 6

a = 6

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