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Solve the system of linear equations by elimination. x+4y=6 −x−2y=−4
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Solve the system of linear equations by elimination. x+4y=6 −x−2y=−4
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Mathematics
3 years
2021-09-05T06:05:37+00:00
2021-09-05T06:05:37+00:00 1 Answers
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Answers ( )
Answer:
(x , y) = (2 , 1)
Step-by-step explanation:
// Solve equation [1] for the variable x
[1] x = -4y + 6
// Plug this in for variable x in equation [2]
[2] -(-4y+6) – 2y = -4
[2] 2y = 2
// Solve equation [2] for the variable y
[2] 2y = 2
[2] y = 1
// By now we know this much :
x = -4y+6
y = 1
// Use the y value to solve for x
x = -4(1)+6 = 2