a) 4p+2p-3p
=> 6p-3p
=> 3p
b) 9s-5s+2s-s
=> 4s+1s
=> 5s
c) 8t+3r-7t-9r
=>8t-7t-9+3
=> t-6r
Hope it helps!
Answer:
3p , 5s , t - 6r
Step-by-step explanation:
(a)
4p + 2p - 3p ← add the first 2 terms
= 6p - 3p
= 3p
(b)
9s - 5s + 2s - s
= 4s + 2s - s
= 6s - s
= 5s
(c)
8t + 3r - 7t - 9r ← collect like terms
= (8t - 7t) + (3r - 9r)
= t - 6r
