Answer:
x= 1
y = -4
Step-by-step explanation:
8x + 9y = -28
-4x = y
8x + 9(-4x) = -28
8x - 36x = -28
-28x = - 28
x = 1
y = -4(1) = -4
Answer:
1/49
Step-by-step explanation:
1/7^2 is merely 1^2/7^2 which is 1/49
Hope this helps :D plz mark brainliest if correct.
Answer:
0
Step-by-step explanation:
m = 21, n = 12
so we just plug these into the equation
(1/3)(21) -1 -(1/2)(12)
(21/3) -1 -(12/2)
7 -1 -6
6 -6
0