Answer:
x + y + z = 180 (this is the first equation)
w + z = 180 (this is the second equation)
Now, rewrite the second equation as z = 180 - w and substitute that for z in the first equation:
x + y + (180 - w) = 180
x + y - w = 0
x + y = w
Step-by-step explanation:
Answer:
28/21
Step-by-step explanation:
You would do 13-(-15) to find the numerator which is 28. Then you would do 8-(-13) to get the denominator which is 21.
Answer:
6x+3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given the function 
and the function 
, to evaluate for 
, you need to substitute it into each function.
Then, for the function f(x), when , you get:
For the function g(x), when , you get:
