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nexus9112 [7]
3 years ago
14

Which ordered pair is the solution to the system of equations below when

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
5 0

Answer:

(7, -3)

Step-by-step explanation:

9x - 3y = 54

9x +1 ly = 12

Subtract both expresion

-3y - 11y = 54 - 12

-14y = 42

y = 42/-14

y = -3

Substitute y = -3 into 1;

From 1, 9x - 3y = 54

9x - 3(-3) = 54

9x - 9 = 54

9x = 54 + 9

9x = 63

x = 63/9

x = 7

Hence the solution to the system of equation is (7, -3)

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