Answer:
11v^2 - 8v + 1
Step-by-step explanation:
(4v^2 - 5v - 1) + (7v^2 - 3v + 2)
open brackets
4v^2 - 5v - 1 + 7v^2 - 3v + 2
place like terms together (remember signs remain same )
4v^2 + 7v^2 - 5v - 3v + 2 - 1
add or subtract like terms
11v^2 - 8v + 1
1. (7/21) = 0.33
2. (6/21) - (3/21) = (3/21)
= 0.14
Answer:
The firsts one is -93
The second is -20
Step-by-step explanation:
Just add the numbers yo each number togetherput a negative sign in front and you have your answer. For how to add a negative.
<em>Note</em><em> </em><em>If two negative numbers are multiplied together or divided, the answer is positive. If a positive and a negative number are multiplied or divided, the answer is negative.</em>
HELLPPP
Solve the system by substitution.
-9x-10y=12
−3x+3=y
X=2
Y= -3
What are the answer choices??