Lacey112298idn
Answered

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5. Which method would be the simplest way to solve the system? 7x + 5y = 19, -7x – 2y = -16
A) graphing
B) substitution
C) elimination
D) distributive

Sagot :

Panoyinidn
 7x + 5y = 19
-7x - 2y = -16
         3y = 3
          3     3
           y = 1
 7x + 5y = 19
7x + 5(1) = 19
   7x + 5 = 19
         -5    - 5
         7x = 14
          7      7
           x = 2
     (x, y) = (2, 1)
The method would be a elimination method (the answer is C).
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