30JUL21

Algebra

X= 3p + 2q 2 terms in this expression

Y= 2q - r + 4 3 terms in this expression

Z= 5q + 17p - pq 3 terms in this expression

X+Y= 3p + 4q - r + 4 4 terms

Y+Z= 17p + 7q - r - pq + 4 5 terms

Z+X= 20p + 7q - pq 3 terms

2(X+Y)= 2(3p + 4q - r + 4)

6p+8q-2r+8

3(Y+Z)= 51p+21q-3r-3pq+12

4(Z+X)= 80p+28q-4pq

X-Y= (3p + 2q) - (2q - r + 4)

3p + 2q - 2q + r - 4

3p + r - 4