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5 A system of equations contains the Iines x+4y=2 and x-2y=c. When solving the system algebraically it is determined that x=6. What is the value of c in the second equation?

А. c=4
B. c=6
C. c=8
D. c=-4

Sagot :

Ganjilaya2019idn

Answer:

c = 8

Step-by-step explanation:

x = 6

from first equation : 6 + 4y = 2 → 4y = 2-6=-4 → y= -1

second equation : 6 -2(-1) = c → c = 6+2=8

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