Answer:
Step-by-step explanation:
y = -2x + 5 ⇒ 2x + y = 5
6x + 3y = 15 ⇒ 2x + y = 5
The two equations are equivalent, so there are infinitely many solutions.
Answer:
(24x - 48y + 10) / 26 = a
Step-by-step explanation:
-12(-2x+4y) = 26a - 10
24x - 48y = 26a - 10
24x - 48y + 10 = 26a
(24x - 48y + 10) / 26 = a
Answer:
D
Step-by-step explanation:
complementary angle of 30°=60°
5n+20=60
5n=60-20
5n=40
n=40/5=8
Answer:
One Solution
(2, 1)
Step-by-step explanation:
We have the following system of equations
To solve the system, substitute the second equation in the first equation and solve for the variable x
Now substitute the value of x into any of the two equations and solve for the variable y.
Finally the system of equations has one solution
(2, 1)
This sample is likely to be biased, as they have a personal affinity to the topic in question.