3(-6+3y/2)+3y=21

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Solution for 3(-6+3y/2)+3y=21 equation: 


y in (-oo:+oo)

3*((3*y)/2-6)+3*y = 21 // - 21

3*((3*y)/2-6)+3*y-21 = 0

3*(3/2*y-6)+3*y-21 = 0

3*(3/2*y-6)+3*y-21 = 0

15/2*y-21-18 = 0

15/2*y-39 = 0

15/2*y-39 = 0

15/2*y-39 = 0 // + 39

15/2*y = 39 // : 15/2

y = 39/15/2

y = 26/5

y = 26/5

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