w-(-3)=7
Pretend that there is a -1 in front of the bracket
w-1(-3)=7
Mutiply the bracket by -1
(-1)(-3)=3
w+3=7
Move +3 to the other side. Sign changes from +3 to -3.
w+3-3=7-3
w=4
Answer: w=4
What angels? You need to show a picture :)
Answer:
O the circumcenter is equidistant to all three vertices
Step-by-step explanation:
See picture for explanation.