Question

say the write answers nd explain it​

Answer 1

Answer:

-7p+15q-8r

Step-by-step explanation:

Sum of the two expressions => (3p+4q-9r)+(3r+13q-8p) = -5p+17q-6r

Let's assume the number to be 'x'

-5p+17q-6r -x = 2p+2q+2r

-x = 2p+2q+2r-(-5p+17q-6r)

-x = 2p+2q+2r + 5p-17q+6r

-x = 7p-15q+8r

Moving minus to the RHS, we get

x = -(7p-15q+8r)

x= -7p+15q-8r