Anonymous Anonymous

06-05-2015
Mathematics

Answered

whats the difference of the two expression? (3/7x+9)-(2/7x-3)

Verified Answer :

Anonymous Anonymous

06-05-2015

\(\left(\frac{3}{7}x+9\right)-\left(\frac{2}{7}x-3\right)\\\\=\frac{3}{7}x+9-\frac{2}{7}x-(-3)\\\\=\frac{3}{7}x+9-\frac{2}{7}x+3\\\\=(\frac{3}{7}x-\frac{2}{7}x)+(9+3)\\\\=\frac{3-2}{7}x+12\\\\=\boxed{\frac{1}{7}x+12}\)

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