subtract the sum of 3p+q-r and 15p+4q-8r from the difference of 10p and 5p-q+8r
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Answer:
r - 13p - 4q
Step-by-step explanation:
Sum of the given = (3p + q - r) + (15p + 4q - 8r)
= 3p + q - r + 15p + 4q - 8r
= 18p + 5q - 9r
Difference between the given = (10p) - (5p - q + 8r)
= 10p - 5p + q - 8r
= 5p + q - 8r
∴ Difference between the two answers =
(5p + q - 8r) - (18p + 5q - 9r)
= 5p + q - 8r - 18p - 5q + 9r
= -13p - 4q + r
ANSWER = r - 13p - 4q
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