So first, you subtract 9 and 4, which gives you 5. Then, you add that to 5. That gives you 10.
Answer:
5
Step-by-step explanation:
it's not necessary to round to the nearest tenth just simply half 10
Answer:
commutative property
Step-by-step explanation:
Either order or way you put the numbers, it will be the same answer.
Answer:
2
Step-by-step explanation:
Fill in each function's argument and do the arithmetic.

X-5y=-21
x=-21+5y
-6(-21+5y)+4y=10
126+-30y+4y=10
126+-26y=10
-26y=-116
y=4.4615
x=1.3076