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Simplfy expression using properties in operation :-8(1+x)+7x

User Timmah
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\begin{gathered} -8\mleft(1+x\mright)+7x \\ \text{ First we use the distributive propierty on -8(1+x)} \\ -8\mleft(1+x\mright)+7x=-8\cdot1+(-8\cdot x)+7x \\ \text{then we group x,} \\ =-8+x(-8+7) \\ \text{ and then we operate -8 + 7 =-1} \\ =-8-x \end{gathered}

User Pplonski
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