Question 417768
Collect like terms 
18/18x +7/18y - 7/18y + 10/18 y ( the letters are in the center of the fractions)
1x + (7/18)y - (7/18)y + (10/18)y
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= x + (5/9)y
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2. remove parentheses and simplify
8p + 4q - 8(8p - 5q + 4r)
= 8p + 4q-64p + 40q - 32r
= -56p +44q -32r
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Cheers,
Stan H.
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