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17-10-2018
Mathematics

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Simplify 22 + 6(3) – 7 and 5x − 2y + 3z − 2x − y + 4z

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18-10-2018

[tex]22+6(3)-7=22+18-7=40-7=33[/tex]

[tex]5x-2y+3z-2x-y+4z\qquad|\text{combine like terms}\\\\=(5x-2x)+(-2y-y)+(3z+4z)=3x-3y+7z[/tex]

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