Answer:
Accroding to the question my guess for the answer would be 10
Step-by-step explanation:
I solved it like this
1000-900
= 100
=1000/100
=10
It will be 69 degrees.
(x-1)+x+43=180
2x+42=180
2x=138
x=69
Answer:

Step-by-step explanation:
original functions:

Subtract the polynomials:

Distribute the negative sign:

Combine like terms:

Add like terms:
