Answer:
y=0
Step-by-step explanation:
Answer:

Step-by-step explanation:
Substitute the second equation into the first one:

Substitute
into the second equation:


Answer:
In the picture.
Step-by-step explanation:
Note : From 1 to 12 it's the same idea but without variables (very easy) so , just do the same idea.
I solved the problems contained variables
I hope that it's a clear explanation.
Answer:
m∠7=34°
Step-by-step explanation:
m∠2=m∠8=146° because alternate interior angles are congruent.
m∠7=180-m∠8=34° because it is a linear pair.
Answer:
SYNTAX PROPERTY
Step-by-step explanation: