It's easier to put a ring around like terms, when simplifying e.g 2t & 3t are both like terms, which will add up to 5t.
1 a. 2t - 2
(-2t - t is - 3t, then + 5t is 2t)
B. - 9z + 4
2 a. - 2v + 3
a. - 2v + 3 B. - 13k - 9
3 a. 7w - 2
B. 10s
4 a. 5 (because - 8b + 8b will cancel out)
B. - 3p + 11
5 a. - 5x + 9
B. 5v - 2
6 a. 5n + 2
- - makes a plus, so the - (-4)n will become - - 4n
B. 3n
7 a. - 17x + 4
B. - 15b
+ - makes a minus, so the + (-6)b will become - 6b
- - means -
+ + means +
+ - means -
Hope this helps!
