-9x - 2
-9 (7) - 2
-63 - 2
-65
Answer:
Step-by-step explanation:
10m^2 and 15mk
common factor is 5m
HCF is 5m
Answer:
24
Step-by-step explanation:
60% of 50 is equivalent to 24 so he answered 24 questions correctly
Answer: 66%
Step-by-step explanation:
I took the test on khan.
Because you can't solve for two variables at once, you can guess and trial/error.
You can also give x or y any value, and then solve for the opposite variable.
x = 0
y = -36
for example. There are more solutions.
y + 8 = -4(x+7)
-36 + 8 = -4(0+7)
-28 = 0 - 28
-28 = -28