Answered

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)

Verified Answer :

Shannonduffyy

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,

\(3a-4b=21\)

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.

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