9. 130 = x + 137
answer x = -7
10. 9x-3 = 4 + 8x
9x = 7 + 8x
answer x = 7
Answer:

Step-by-step explanation:
<-- Given
<-- Multiply by the conjugate of the denominator as a factor of 1

<-- Use the Distributive Property and FOIL


<-- Rewrite
as 


<-- Rewrite in
form
9 is in the tenths place, since the rule is if a number is more than 5 you add one to it so 9 becomes a 10 and the 3 on its left becomes a 4. so the answer is 96.40 or 96.4
Answer:
x=3
Step-by-step explanation:
16-7=9
9/3=3