Answer ad Step-by-step explanation:
1. Adding 10mn and -15mn.
10mn + -15mn = -5mn.
2. Adding
and
.
.
3. Adding 6(x + 3) and -7(x + 3).
6x + 18 + -7x - 21
x - 3.
4. Adding ?
5. Adding 0.5xyz and 1.5 xyz.
0.5xyz + 1.5xyz = 2xyz.
#teamtrees #PAW (Plant And Water)