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−3(2+4k)+7(2k−1) eqivalent expression
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−3(2+4k)+7(2k−1) eqivalent expression

User Martin OConnor
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3 votes

Answer:


\large\boxed{-3(2+4k)+7(2k-1)=2k-13}

Explanation:


-3(2+4k)+7(2k-1)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-3)(2)+(-3)(4k)+(7)(2k)+(7)(-1)\\\\=-6-12k+14k-7\qquad\text{combine like terms}\\\\=(-12k+14k)+(-6-7)\\\\=2k-13

User Ackushiw
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