Answer:
-7
Step-by-step explanation:
u.v
(3, 2).(1, 5)
3(1)-2(5)
3-10
Answer:-3
you take the 3x to the right side of the equal sign
you then change the sign of 3x to -3x
6 different ways? because theres only 6 books left to put on the shelf
16, 8, 36
x = 4y
y = 4, x = 16
y = 2, x = 8
y = 9, x = 36
