Answer:
18a+9
Step-by-step explanation:
Use the distribution property to expand the expression to:
9*(2a) + 9(1) = 18a + 9
9/10 cannot be a mixed number. It is the final fraction.
Answer:
The solution is (-3, -2).
Step-by-step explanation:
Please note that if you simply add these 2 equations together, 9x - 9x = 0, and you are then left with -5y = 10. Thus, y = -2. Subbing -2 for y in the first equation, we get 9x - 8(-2) = -11, or 9x + 16 = -11.
Subtracting 16 from both sides, we get 9x = -27, so that x = -3.
The solution is (-3, -2).
