Question

subtract p-2q+r from the sum of 10p-r and 5p+2q​

Answer 1

Answer:

Given problem :

Subtract p - 2q + r from the sum of 10p - r and 5p + 2q

Solution :

Sum of 10 p - r and 5p + 2q :

$(10p - r) + (5p + 2q)$

$10p - r + 5p + 2q$

$10p + 5p + 2q - r$

$15p + 2q - r$

Subtracting p - 2q + r from 15p + 2q - r

$(15p + 2q - r) - (p - 2q + r)$

$15p + 2q - r - p + 2q - r$

$15p - p + 2q + 2q - r - r$

$14p + 4q - 2r$

$2(7p + 2q - r)$

Ans. 2(7p + 2q - r)

Hope it helps.