5a-7+3a=-21/6

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Solution for 5a-7+3a=-21/6 equation: 


a in (-oo:+oo)

5*a+3*a-7 = -21/6 // + -21/6

5*a+3*a-(-21/6)-7 = 0

5*a+3*a+7/2-7 = 0

8*a-7/2 = 0 // + 7/2

8*a = 7/2 // : 8

a = 7/2/8

a = 7/16

a = 7/16

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