Answer:
a) 6r + 3
b) 8 + 4d
c) -2mn
d) 6s - 10
Step-by-step explanation:
a) 2r + 3 + 4r
We need to add the like terms
= 2r + 4r + 3
= 6r + 3
b) 8 + 3d + d
We need to add the like terms
= 8 + 3d + d
= 8+4d
c) mn + (–3mn)
We need to add the like terms
= mn - 3mn
= -2mn
d) 10s + (–10) + (–4s)
We need to add the like terms
= 10s –10 –4s
= 10s - 4s - 10
= 6s - 10
