2) 3k + g - k
Combine like terms.
(3k - k) + g
Simplify.
2k + g
3) m + 3m + 8
Combine like terms.
(m + 3m) + 8
Simplify.
4m + 8
5) 9j + 8j - 4 - 7j
Combine like terms.
(9j + 8j - 7j) - 4
Simplify.
(17j - 7j) - 4
Simplify.
10j - 4
6) 6y + 3x + 6y - 2x
Combine like terms.
(6y + 6y) + (3x - 2x)
Simplify.
12y + x
~Hope I helped!~