3a-3/2=-21/4

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Solution for 3a-3/2=-21/4 equation: 


a in (-oo:+oo)

3*a-(3/2) = -21/4 // + -21/4

3*a-(3/2)-(-21/4) = 0

3*a-3/2+21/4 = 0

3*a+15/4 = 0 // - 15/4

3*a = -15/4 // : 3

a = -15/4/3

a = -5/4

a = -5/4

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