-14a-5=-12
+5 +5
-14a=-7
Divide -7 by -14a
a=2
I say 12 because that would mean the first rectangle is 6x12 and the second is 10x12
The solution to the problem is 16.
first, you must set up the equation.

Then, simplify exponents.
256*
Next, simplify the equation.
16
Answer:
dang
Step-by-step explanation:
A. x – 58 = 129
yes
B. x + 58 = 129
no
C. 180 – 129 − 59 = x
yes
D. 129 – 58 = xyes
E. (180 – 129) – 51 + x = 180no
hope this helps