Question

Combining like terms 4-6r+3r

Answer 1

$4 - 6r + 3r\\\\4 - r(6-3)\\\\4 - r(3)\\\\\huge{\boxed{4 - 3r}}}$

Note that:

$-6r + 3r = 6(-r) - (-r)3 = (-r)(6-3) = -r(6-3) = -r(3) = -3r$

Answer 2

4-3r becsuse you combine -6r with 3r which is -3r