I think it’s 9.10 but I’m not really sure
Answer:
10a = 30
Step-by-step explanation:
By using elimination:
4a + 2z = 10
-2(3a + z) = -2(-10)
4a + 2z = 10
6a - 2z = 20
2z and -2z cancel out
10a = 30
a = 3
They are asking for 10a, so 10 (3) = 30.
7 and 1/3 so 7 1/3
Hope this helps
Hello!
Explanation:
First, you had to do is multiply by 4 from both sides of an equation.

And, then simplify. You can also multiply by the numbers.




Answer: 
*The answer must have a positive sign.*
Hope this helps!
Thanks!
-Charlie