Question

r+3-6r+r

Answer 1

just combine r - 6r + r what do you get?

Answer 2

Add like terms:

(1+3-6+1)r

Solve.

Answer 3

would it be -1r

Answer 4

Actually, since 3 doesn't have r with it, it's not -1r or -r.

Only combine the like terms.