20=-6a+3a+8

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Solution for 20=-6a+3a+8 equation: 


a in (-oo:+oo)

20 = 3*a-6*a+8 // - 3*a-6*a+8

20-(-6*a)-(3*a)-8 = 0

6*a-3*a-8+20 = 0

3*a+12 = 0 // - 12

3*a = -12 // : 3

a = -12/3

a = -4

a = -4

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