3(-8-7a)=39

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Solution for 3(-8-7a)=39 equation: 


a in (-oo:+oo)

3*(-(7*a)-8) = 39 // - 39

3*(-(7*a)-8)-39 = 0

3*(-7*a-8)-39 = 0

3*(-7*a-8)-39 = 0

-21*a-63 = 0

-21*a-63 = 0

-21*a-63 = 0 // + 63

-21*a = 63 // : -21

a = 63/(-21)

a = -3

a = -3

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