On both problems x should equal 3
The answer is C you just add both angles together and subtract the sum by 180 because that’s what triangles equal to. Leaving you with the answer of 78°! hope this helped :)
Answer:
Step-by-step explanation:
the answer is A OK
Answer:
PEMDAS
Step-by-step explanation:
P = parentheses ( )
E = exponents x^2
M= multiplication z x z
D = division p/ z
A = addition y+z
S = substraction b-z
You do these steps in order.

just a plain vanilla substitution