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What is the solution of the system? Use the elimination method. 2x+y=20. 6x−5y=12 Enter your a...
4 months ago
Q:
What is the solution of the system? Use the elimination method. 2x+y=20. 6x−5y=12 Enter your answer in the boxes.
Accepted Solution
A:
Given
2x + y = 20 . . . (1)
6x - 5y = 12 . . . (2)
(1) x 3 ⇒ 6x + 3y = 60 . . . (3)
(2) - (3) ⇒ -8y = -48
⇒ y = -48 / -8 = 6
Substituting for y in (1), we have
2x + 6 = 20
2x = 20 - 6 = 14
x = 14 / 2 = 7.
Therefore, the solution to the system is
x = 7 and y = 6.