Answer:
(-1, 6)
Step-by-step explanation:
{-c + 2d = 13
{-9c - 4d = -15
-⅑[-9c - 4d = -15]
{-c + 2d = 13
{c + 4⁄9d = 1⅔ >> New equation
______________
2 4⁄9d = 14⅔
______ _____
2 4⁄9 2 4⁄9
d = 6 [Plug this back into both equations to get the c-value of -1]; -1 = c
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Answer:
2
Step-by-step explanation:
Answer:
37/5
Step-by-step explanation:
Add the like terms.
The like terms in this case are:
-4x^2 and -2x^2
This makes -6x^2
-3y and 5y
This makes 2y
-8 and 1
This makes -7
Your answer is (-6x^2+2y-7)