Math

-3(7 + 3x) = -129

Asked by AnneS2 on 21 Apr 01:43

Last updated by anonymous on 22 Apr 23:41

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Answered by CherieS on 22 Apr 23:41

-3(7 + 3x) = -129

(-3)(7) (-3)(+3x)=-129

-21-9x=-129

-21+21-9x=-129+21

-9x=-108

-9x/-9=-108/-9

x=12