Answer:
11
Step-by-step explanation:
You will move the 7 to 18 but bc there is a equal sign you will change the positive sign to negative and just solve -7 plus 18 you will get 11 and that’s b
18 = 7/b
18b=7
b=7/18
A': (2,1)
B': (5,3)
C': (4,-1)
x -----> x + 1
y -----> y - 2
Answer: x = 9/4
4x+12+2=23
4x+14 = 23
4x = 9
x = 9/4
I think it's 9 again I think
