Answered

Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Our platform offers a seamless experience for finding reliable answers from a network of experienced professionals. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Which ordered pair in the form (a, b) is a solution of this equation?

3a – 4b = 21


A.
(–3, –2)

B.
(0, 7)

C.
(7, 0)

D.
(–2, –3)


Sagot :

c - (7,0) because 3x7= 21 add 4x0 = 0 which then equals 21 :)

Answer:

C.  (7, 0)

Step-by-step explanation:

Here, the given equation,

[tex]3a-4b=21[/tex]

The order pair ( in which first value shows a and second value shows b ) that satisfies the given equation is called the solution of the equation,

For (-3, -2)

3(-3) - 4(-2) = 21 ( False )

For (0, 7),

3(0) - 4(7) = 21 ( False )

For (7,0),

3(7) - 4(0) = 21 ( True )

For (-2, -3),

3(-2) - 4(-3) = 21 ( False )

Thus, only (7,0) is the solution of the given equation,

Option 'C' is correct.