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
You subtract two and then multiply by -7and you get a<63
Assuming that the triangle is isoceles, the answer should be 30.
d. regular decagon; interior: 144; exterior: 36
HOPE THIS WILL HELP YOU
