Collect like terms 6x-8x Is this -2x?

Collect like terms 18r^2 + 7s + 4r^2

collect like terms 10c+5d-5c-8d= 5c+3d? is this correct?

how do i collect the like terms 10p+5q-7p-7q would the answer be 3p,2q

Collect like terms 12p+4q-5p-9q=

Collect like terms 12p+4q-5p-9q= I dont'know how to collect like terms, please help.

collect the like terms x-5x

collect like terms 14a+6b-4a-9b= 10a-3b is this right?

Collect Like Terms 15p+7q-4p-9q I get the answe 11p+2q/ I hope I am doing theis correctly.

collect like terms 3a+2a^2+a-a^2

collect like terms and then arrange in descending order. 8x^5 - 7x^9-7x^5+ 8x^9

Asked by Sadie