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Expand - 7(3x + 1). -7(3x + 1) 7+1-7 =

Expand - 7(3x + 1). -7(3x + 1) 7+1-7 =-example-1

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\begin{gathered} -7(3x+1)\text{ } \\ -7(3x)\text{ + (-7)}(1) \\ -21x-7 \end{gathered}

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