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  • 16-09-2018
  • Mathematics
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sqdancefan
sqdancefan sqdancefan
  • 16-09-2018

Put the values of the variables in place of the variables in the expression, then do the arithmetic.

[tex]8p+3q-18\\\\=8\left(\dfrac{1}{2}\right)+3(7)-18=\dfrac{8}{2}+21-18\\\\=4+21-18\\\\=25-18\\\\=\bf{7}[/tex]

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