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jev9aljacque
jev9aljacque jev9aljacque
  • 13-07-2016
  • Mathematics
Answered

  1. Determine which ordered pair in the form (a, b) is a solution of the given equation. 3a – 4b = 21

(–2, –3)

(0, 7)

(7, 0)

(–3, –2)

Verified Answer :

meerkat18
meerkat18 meerkat18
  • 16-07-2016


To answer the equation 3a – 4b = 21 , we substitute each point in the given choices to the given expression. In this case, 
a. 3(-2) - 4(-3) = 6b. 3(0) - 4(7) = -28c. 3(7) - 4(0) = 21d. 3(-3) - 4(-2) = -1
The point that is equal to 21 when substituted is C.

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