The answer is 21 because if you subtract 17 from 17 and 38 you get 21. Z=21.
You wanna cross out numbers if they can both divide by the same number. then multiply the numbers in the same row together
I'd say A because all side are equal.
Answer:
D
Step-by-step explanation:
complementary means it equals 90
Answer:
x = -1
Step-by-step explanation:
2x + 5x = -7
7x = -7
x = -1