8-15 is -7 and 8+(-15) is also -7 because this equation can also be written as 8-15 but I'm not really sure how to explain how they are different. Sorry
Answer:
5
Step-by-step explanation:
4(x+3) is 4x+12
2x+22=4x+12
-2x from both sides
get 22=2x+12
-12 from both sides
get 10=2x
divide by 2 to both sides
get 5
Answer:
<h2>regular nonagon</h2>
Step-by-step explanation:
Look at the picture.
Y=62
X=122
cuz triangles equal 180
Answer:
24265
Step-by-step explanation:
I think you just need to add the expressions 23000 and 1265
23000 + 1265
= 24265