7(3-2a)=-21

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Solution for 7(3-2a)=-21 equation: 


a in (-oo:+oo)

7*(3-(2*a)) = -21 // + 21

7*(3-(2*a))+21 = 0

7*(3-2*a)+21 = 0

7*(3-2*a)+21 = 0

42-14*a = 0

42-14*a = 0

42-14*a = 0 // - 42

-14*a = -42 // : -14

a = -42/(-14)

a = 3

a = 3

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