Lungatgelynidn
Answered

Makahanap ng mabilis at maaasahang mga solusyon sa iyong mga problema sa IDNStudy.com. Sumali sa aming interactive na platform ng tanong at sagot para sa mabilis at eksaktong tugon mula sa mga propesyonal sa iba't ibang larangan.

2. What is the value of y in 2x - 5y = 16 if x = 3?
3.Which of the following ordered pairs corresponds to the linear equation x + y = 0?
a. (2,-1)
b. (1,-1)​

Sagot :

Asdferieghjklidn

Answer:

2. y = -2

3. B.

Step-by-step explanation:

PROBLEM 2:

given: 2x - 5y = 16 if x=3

solution:

substitute the given value of x into the equation as follows:

2x - 5y = 16

2(3) - 5y = 16

6 - 5y = 16

the "y" has to be alone erho you have to transfer 6 to the other side of the equation and it should look like this:

-5y = 16 - 6

-5y = 10

y = -2

PROBLEM 3:

substituting both ordered pairs into the given equation x + y = 0, the first choice would give us: 2 + (-1) ≠ 0 because there would be a difference of 1 while the second choice would give us: 1 + (-1) = 0.