n = -9
-3 x n + -3 x 4 =
-3n + -12 = 15
-3n -12 = 15
-12 -15 = 3n
-27 = 3n
Answer:
123
Step-by-step explanation:
Here:
1 out of 4
7
L = W+3
perimeter = 2L+2W = 58
L+W = 29
(W+3)+W = 29
W = 13 ft
L = W+3 = 16 ft
x=(3-y)/2
y=3-2x)
2x+y = 3