Answer:
c
Step-by-step explanation:
Answer:
a = -2
Step-by-step explanation:
7a + 10 = 2a
subtract 7a from each side
7a-7a+10 = 2a-7a
10 = -5a
divide by -5
10/-5 = -5a/-5
-2 = a
check
7 (-2) +10 = 2(-2)
-14 + 10 = -4
-4 = -4
The answer is 9 cubic units
I'm not sure what your trying to ask is that the full question
The answer to this question would be D. 3(x)-3(9)
