Answer:
12a^2 - 9a + 5
Step-by-step explanation:
(5a^2 - 6a - 4) - (-7a^2 + 3a - 9)
5a^2 + 7a^2 = 12a^2
-6a - 3a = -9a
-4 + 9 = 5
12a^2 - 9a + 5
Answer:
11.25
Step-by-step explanation:
13.79-x
Let x= 2.54
13.79-2.54
11.25
it's a I know this because I'm in the 8th
Step-by-step explanation:
it's a
Subtract 2.2 from 7 and that will be equal to w
Y-4=5(x-6)
y-4=5x-30
5x-y=26
5x+(-1)y=26
